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Finding the Fourth Proportional to 123,732.99, 170,752.05 and 67,144.77

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Solution

The fourth proportional to 123,732.99, 170,752.05 and 67,144.77 is: 92,660.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,732.99 : 170,752.05 = 67,144.77 : x
  2. Step 2: Convert to fraction form
    123,732.99/170,752.05 = 67,144.77/x
  3. Step 3: Cross multiply
    123,732.99x = 170,752.05 × 67,144.77
  4. Step 4: Simplify right side
    123,732.99x = 11,465,107,124.28
  5. Step 5: Solve for x
    x = 11,465,107,124.28/123,732.99
  6. Step 6: Final answer
    x = 92,660.07

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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.