Home / 72,160.72-108,202.40-36,131.52

Finding the Fourth Proportional to 72,160.72, 108,202.40 and 36,131.52

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Solution

The fourth proportional to 72,160.72, 108,202.40 and 36,131.52 is: 54,177.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,160.72 : 108,202.40 = 36,131.52 : x
  2. Step 2: Convert to fraction form
    72,160.72/108,202.40 = 36,131.52/x
  3. Step 3: Cross multiply
    72,160.72x = 108,202.40 × 36,131.52
  4. Step 4: Simplify right side
    72,160.72x = 3,909,516,728.96
  5. Step 5: Solve for x
    x = 3,909,516,728.96/72,160.72
  6. Step 6: Final answer
    x = 54,177.91

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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.