Home / 120,629.70-180,944.55-83,304.90

Finding the Fourth Proportional to 120,629.70, 180,944.55 and 83,304.90

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Solution

The fourth proportional to 120,629.70, 180,944.55 and 83,304.90 is: 124,957.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,629.70 : 180,944.55 = 83,304.90 : x
  2. Step 2: Convert to fraction form
    120,629.70/180,944.55 = 83,304.90/x
  3. Step 3: Cross multiply
    120,629.70x = 180,944.55 × 83,304.90
  4. Step 4: Simplify right side
    120,629.70x = 15,073,567,643.30
  5. Step 5: Solve for x
    x = 15,073,567,643.30/120,629.70
  6. Step 6: Final answer
    x = 124,957.35

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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.