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Finding the Fourth Proportional to 159,073.97, 219,520.10 and 87,453.36

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Solution

The fourth proportional to 159,073.97, 219,520.10 and 87,453.36 is: 120,684.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,073.97 : 219,520.10 = 87,453.36 : x
  2. Step 2: Convert to fraction form
    159,073.97/219,520.10 = 87,453.36/x
  3. Step 3: Cross multiply
    159,073.97x = 219,520.10 × 87,453.36
  4. Step 4: Simplify right side
    159,073.97x = 19,197,770,551.17
  5. Step 5: Solve for x
    x = 19,197,770,551.17/159,073.97
  6. Step 6: Final answer
    x = 120,684.55

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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.