Home / 83,039.24-123,916.07-74,178.92

Finding the Fourth Proportional to 83,039.24, 123,916.07 and 74,178.92

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Solution

The fourth proportional to 83,039.24, 123,916.07 and 74,178.92 is: 110,694.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,039.24 : 123,916.07 = 74,178.92 : x
  2. Step 2: Convert to fraction form
    83,039.24/123,916.07 = 74,178.92/x
  3. Step 3: Cross multiply
    83,039.24x = 123,916.07 × 74,178.92
  4. Step 4: Simplify right side
    83,039.24x = 9,191,959,252.77
  5. Step 5: Solve for x
    x = 9,191,959,252.77/83,039.24
  6. Step 6: Final answer
    x = 110,694.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.