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Finding the Fourth Proportional to 159,217.66, 219,725.76 and 87,600.70

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Solution

The fourth proportional to 159,217.66, 219,725.76 and 87,600.70 is: 120,891.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,217.66 : 219,725.76 = 87,600.70 : x
  2. Step 2: Convert to fraction form
    159,217.66/219,725.76 = 87,600.70/x
  3. Step 3: Cross multiply
    159,217.66x = 219,725.76 × 87,600.70
  4. Step 4: Simplify right side
    159,217.66x = 19,248,130,384.03
  5. Step 5: Solve for x
    x = 19,248,130,384.03/159,217.66
  6. Step 6: Final answer
    x = 120,891.93

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.