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Finding the Fourth Proportional to 159,098, 219,549.62 and 87,477.52

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Solution

The fourth proportional to 159,098, 219,549.62 and 87,477.52 is: 120,715.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,098 : 219,549.62 = 87,477.52 : x
  2. Step 2: Convert to fraction form
    159,098/219,549.62 = 87,477.52/x
  3. Step 3: Cross multiply
    159,098x = 219,549.62 × 87,477.52
  4. Step 4: Simplify right side
    159,098x = 19,205,656,274.54
  5. Step 5: Solve for x
    x = 19,205,656,274.54/159,098
  6. Step 6: Final answer
    x = 120,715.89

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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.