Home / 99,321.20-148,967.40-29,193.20

Finding the Fourth Proportional to 99,321.20, 148,967.40 and 29,193.20

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Solution

The fourth proportional to 99,321.20, 148,967.40 and 29,193.20 is: 43,785.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,321.20 : 148,967.40 = 29,193.20 : x
  2. Step 2: Convert to fraction form
    99,321.20/148,967.40 = 29,193.20/x
  3. Step 3: Cross multiply
    99,321.20x = 148,967.40 × 29,193.20
  4. Step 4: Simplify right side
    99,321.20x = 4,348,835,101.68
  5. Step 5: Solve for x
    x = 4,348,835,101.68/99,321.20
  6. Step 6: Final answer
    x = 43,785.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.