Home / 100,146,419.70-150,219,629.55-83,140,307.70

Finding the Fourth Proportional to 100,146,419.70, 150,219,629.55 and 83,140,307.70

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Solution

The fourth proportional to 100,146,419.70, 150,219,629.55 and 83,140,307.70 is: 124,710,461.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,146,419.70 : 150,219,629.55 = 83,140,307.70 : x
  2. Step 2: Convert to fraction form
    100,146,419.70/150,219,629.55 = 83,140,307.70/x
  3. Step 3: Cross multiply
    100,146,419.70x = 150,219,629.55 × 83,140,307.70
  4. Step 4: Simplify right side
    100,146,419.70x = 12,489,306,223,367,014
  5. Step 5: Solve for x
    x = 12,489,306,223,367,014/100,146,419.70
  6. Step 6: Final answer
    x = 124,710,461.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.