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Finding the Fourth Proportional to 137,264.68, 205,561.68 and 84,601.72

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Solution

The fourth proportional to 137,264.68, 205,561.68 and 84,601.72 is: 126,695.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,264.68 : 205,561.68 = 84,601.72 : x
  2. Step 2: Convert to fraction form
    137,264.68/205,561.68 = 84,601.72/x
  3. Step 3: Cross multiply
    137,264.68x = 205,561.68 × 84,601.72
  4. Step 4: Simplify right side
    137,264.68x = 17,390,871,694.09
  5. Step 5: Solve for x
    x = 17,390,871,694.09/137,264.68
  6. Step 6: Final answer
    x = 126,695.90

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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.