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Finding the Fourth Proportional to 159,010.59, 219,439.88 and 87,393.15

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Solution

The fourth proportional to 159,010.59, 219,439.88 and 87,393.15 is: 120,605.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,010.59 : 219,439.88 = 87,393.15 : x
  2. Step 2: Convert to fraction form
    159,010.59/219,439.88 = 87,393.15/x
  3. Step 3: Cross multiply
    159,010.59x = 219,439.88 × 87,393.15
  4. Step 4: Simplify right side
    159,010.59x = 19,177,541,911.86
  5. Step 5: Solve for x
    x = 19,177,541,911.86/159,010.59
  6. Step 6: Final answer
    x = 120,605.44

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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.