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Finding the Fourth Proportional to 159,819.20, 220,554.96 and 88,204.76

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Solution

The fourth proportional to 159,819.20, 220,554.96 and 88,204.76 is: 121,725.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,819.20 : 220,554.96 = 88,204.76 : x
  2. Step 2: Convert to fraction form
    159,819.20/220,554.96 = 88,204.76/x
  3. Step 3: Cross multiply
    159,819.20x = 220,554.96 × 88,204.76
  4. Step 4: Simplify right side
    159,819.20x = 19,453,997,313.61
  5. Step 5: Solve for x
    x = 19,453,997,313.61/159,819.20
  6. Step 6: Final answer
    x = 121,725.03

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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.