Home / 111,006.12-153,202.44-72,797.80

Finding the Fourth Proportional to 111,006.12, 153,202.44 and 72,797.80

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Solution

The fourth proportional to 111,006.12, 153,202.44 and 72,797.80 is: 100,470.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,006.12 : 153,202.44 = 72,797.80 : x
  2. Step 2: Convert to fraction form
    111,006.12/153,202.44 = 72,797.80/x
  3. Step 3: Cross multiply
    111,006.12x = 153,202.44 × 72,797.80
  4. Step 4: Simplify right side
    111,006.12x = 11,152,800,586.63
  5. Step 5: Solve for x
    x = 11,152,800,586.63/111,006.12
  6. Step 6: Final answer
    x = 100,470.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.