Home / 138,837.85-208,264.85-39,005.83

Finding the Fourth Proportional to 138,837.85, 208,264.85 and 39,005.83

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Solution

The fourth proportional to 138,837.85, 208,264.85 and 39,005.83 is: 58,511.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,837.85 : 208,264.85 = 39,005.83 : x
  2. Step 2: Convert to fraction form
    138,837.85/208,264.85 = 39,005.83/x
  3. Step 3: Cross multiply
    138,837.85x = 208,264.85 × 39,005.83
  4. Step 4: Simplify right side
    138,837.85x = 8,123,543,069.61
  5. Step 5: Solve for x
    x = 8,123,543,069.61/138,837.85
  6. Step 6: Final answer
    x = 58,511.01

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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.