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Finding the Fourth Proportional to 159,192.59, 219,684.20 and 87,572.70

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Solution

The fourth proportional to 159,192.59, 219,684.20 and 87,572.70 is: 120,849.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,192.59 : 219,684.20 = 87,572.70 : x
  2. Step 2: Convert to fraction form
    159,192.59/219,684.20 = 87,572.70/x
  3. Step 3: Cross multiply
    159,192.59x = 219,684.20 × 87,572.70
  4. Step 4: Simplify right side
    159,192.59x = 19,238,338,103.48
  5. Step 5: Solve for x
    x = 19,238,338,103.48/159,192.59
  6. Step 6: Final answer
    x = 120,849.46

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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.