Home / 138,860.08-208,257.20-59,931.20

Finding the Fourth Proportional to 138,860.08, 208,257.20 and 59,931.20

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Solution

The fourth proportional to 138,860.08, 208,257.20 and 59,931.20 is: 89,882.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,860.08 : 208,257.20 = 59,931.20 : x
  2. Step 2: Convert to fraction form
    138,860.08/208,257.20 = 59,931.20/x
  3. Step 3: Cross multiply
    138,860.08x = 208,257.20 × 59,931.20
  4. Step 4: Simplify right side
    138,860.08x = 12,481,103,904.64
  5. Step 5: Solve for x
    x = 12,481,103,904.64/138,860.08
  6. Step 6: Final answer
    x = 89,882.59

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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.