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Finding the Fourth Proportional to 98,377.60, 146,799.12 and 87,774.73

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Solution

The fourth proportional to 98,377.60, 146,799.12 and 87,774.73 is: 130,977.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,377.60 : 146,799.12 = 87,774.73 : x
  2. Step 2: Convert to fraction form
    98,377.60/146,799.12 = 87,774.73/x
  3. Step 3: Cross multiply
    98,377.60x = 146,799.12 × 87,774.73
  4. Step 4: Simplify right side
    98,377.60x = 12,885,253,122.24
  5. Step 5: Solve for x
    x = 12,885,253,122.24/98,377.60
  6. Step 6: Final answer
    x = 130,977.51

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.