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Finding the Fourth Proportional to 135,492.57, 202,414.68 and 87,718.46

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Solution

The fourth proportional to 135,492.57, 202,414.68 and 87,718.46 is: 131,044.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,492.57 : 202,414.68 = 87,718.46 : x
  2. Step 2: Convert to fraction form
    135,492.57/202,414.68 = 87,718.46/x
  3. Step 3: Cross multiply
    135,492.57x = 202,414.68 × 87,718.46
  4. Step 4: Simplify right side
    135,492.57x = 17,755,502,998.92
  5. Step 5: Solve for x
    x = 17,755,502,998.92/135,492.57
  6. Step 6: Final answer
    x = 131,044.11

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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.