Home / 138,665.13-207,830.52-63,681.81

Finding the Fourth Proportional to 138,665.13, 207,830.52 and 63,681.81

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Solution

The fourth proportional to 138,665.13, 207,830.52 and 63,681.81 is: 95,445.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,665.13 : 207,830.52 = 63,681.81 : x
  2. Step 2: Convert to fraction form
    138,665.13/207,830.52 = 63,681.81/x
  3. Step 3: Cross multiply
    138,665.13x = 207,830.52 × 63,681.81
  4. Step 4: Simplify right side
    138,665.13x = 13,235,023,686.84
  5. Step 5: Solve for x
    x = 13,235,023,686.84/138,665.13
  6. Step 6: Final answer
    x = 95,445.94

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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.