Home / 138,100.48-207,155.18-38,261.64

Finding the Fourth Proportional to 138,100.48, 207,155.18 and 38,261.64

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Solution

The fourth proportional to 138,100.48, 207,155.18 and 38,261.64 is: 57,393.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,100.48 : 207,155.18 = 38,261.64 : x
  2. Step 2: Convert to fraction form
    138,100.48/207,155.18 = 38,261.64/x
  3. Step 3: Cross multiply
    138,100.48x = 207,155.18 × 38,261.64
  4. Step 4: Simplify right side
    138,100.48x = 7,926,096,921.30
  5. Step 5: Solve for x
    x = 7,926,096,921.30/138,100.48
  6. Step 6: Final answer
    x = 57,393.70

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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.