Home / 123,376.50-170,259.66-66,787.92

Finding the Fourth Proportional to 123,376.50, 170,259.66 and 66,787.92

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Solution

The fourth proportional to 123,376.50, 170,259.66 and 66,787.92 is: 92,167.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,376.50 : 170,259.66 = 66,787.92 : x
  2. Step 2: Convert to fraction form
    123,376.50/170,259.66 = 66,787.92/x
  3. Step 3: Cross multiply
    123,376.50x = 170,259.66 × 66,787.92
  4. Step 4: Simplify right side
    123,376.50x = 11,371,288,551.31
  5. Step 5: Solve for x
    x = 11,371,288,551.31/123,376.50
  6. Step 6: Final answer
    x = 92,167.38

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1.5x scale

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.