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Finding the Fourth Proportional to 159,715.83, 220,414.35 and 88,100.40

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Solution

The fourth proportional to 159,715.83, 220,414.35 and 88,100.40 is: 121,582.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,715.83 : 220,414.35 = 88,100.40 : x
  2. Step 2: Convert to fraction form
    159,715.83/220,414.35 = 88,100.40/x
  3. Step 3: Cross multiply
    159,715.83x = 220,414.35 × 88,100.40
  4. Step 4: Simplify right side
    159,715.83x = 19,418,592,400.74
  5. Step 5: Solve for x
    x = 19,418,592,400.74/159,715.83
  6. Step 6: Final answer
    x = 121,582.14

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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.