Home / 138,141.32-207,212.00-38,301.52

Finding the Fourth Proportional to 138,141.32, 207,212.00 and 38,301.52

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Solution

The fourth proportional to 138,141.32, 207,212.00 and 38,301.52 is: 57,452.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,141.32 : 207,212.00 = 38,301.52 : x
  2. Step 2: Convert to fraction form
    138,141.32/207,212.00 = 38,301.52/x
  3. Step 3: Cross multiply
    138,141.32x = 207,212.00 × 38,301.52
  4. Step 4: Simplify right side
    138,141.32x = 7,936,533,852.70
  5. Step 5: Solve for x
    x = 7,936,533,852.70/138,141.32
  6. Step 6: Final answer
    x = 57,452.28

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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.