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Finding the Fourth Proportional to 172,449.27, 258,738.03 and 77,650.92

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Solution

The fourth proportional to 172,449.27, 258,738.03 and 77,650.92 is: 116,505.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,449.27 : 258,738.03 = 77,650.92 : x
  2. Step 2: Convert to fraction form
    172,449.27/258,738.03 = 77,650.92/x
  3. Step 3: Cross multiply
    172,449.27x = 258,738.03 × 77,650.92
  4. Step 4: Simplify right side
    172,449.27x = 20,091,246,068.49
  5. Step 5: Solve for x
    x = 20,091,246,068.49/172,449.27
  6. Step 6: Final answer
    x = 116,505.25

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1.5x scale

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.