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Finding the Fourth Proportional to 127,513.87, 175,965.49 and 69,368.78

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Solution

The fourth proportional to 127,513.87, 175,965.49 and 69,368.78 is: 95,726.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,513.87 : 175,965.49 = 69,368.78 : x
  2. Step 2: Convert to fraction form
    127,513.87/175,965.49 = 69,368.78/x
  3. Step 3: Cross multiply
    127,513.87x = 175,965.49 × 69,368.78
  4. Step 4: Simplify right side
    127,513.87x = 12,206,511,363.40
  5. Step 5: Solve for x
    x = 12,206,511,363.40/127,513.87
  6. Step 6: Final answer
    x = 95,726.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.