Home / 129,042.32-178,165.17-98,773.70

Finding the Fourth Proportional to 129,042.32, 178,165.17 and 98,773.70

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Solution

The fourth proportional to 129,042.32, 178,165.17 and 98,773.70 is: 136,374.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,042.32 : 178,165.17 = 98,773.70 : x
  2. Step 2: Convert to fraction form
    129,042.32/178,165.17 = 98,773.70/x
  3. Step 3: Cross multiply
    129,042.32x = 178,165.17 × 98,773.70
  4. Step 4: Simplify right side
    129,042.32x = 17,598,032,161.20
  5. Step 5: Solve for x
    x = 17,598,032,161.20/129,042.32
  6. Step 6: Final answer
    x = 136,374.12

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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.