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Finding the Fourth Proportional to 159,551.46, 220,177.68 and 87,929.64

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Solution

The fourth proportional to 159,551.46, 220,177.68 and 87,929.64 is: 121,341.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,551.46 : 220,177.68 = 87,929.64 : x
  2. Step 2: Convert to fraction form
    159,551.46/220,177.68 = 87,929.64/x
  3. Step 3: Cross multiply
    159,551.46x = 220,177.68 × 87,929.64
  4. Step 4: Simplify right side
    159,551.46x = 19,360,144,138.44
  5. Step 5: Solve for x
    x = 19,360,144,138.44/159,551.46
  6. Step 6: Final answer
    x = 121,341.07

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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.