Home / 98,869.60-148,304.40-80,207.20

Finding the Fourth Proportional to 98,869.60, 148,304.40 and 80,207.20

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Solution

The fourth proportional to 98,869.60, 148,304.40 and 80,207.20 is: 120,310.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,869.60 : 148,304.40 = 80,207.20 : x
  2. Step 2: Convert to fraction form
    98,869.60/148,304.40 = 80,207.20/x
  3. Step 3: Cross multiply
    98,869.60x = 148,304.40 × 80,207.20
  4. Step 4: Simplify right side
    98,869.60x = 11,895,080,671.68
  5. Step 5: Solve for x
    x = 11,895,080,671.68/98,869.60
  6. Step 6: Final answer
    x = 120,310.80

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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.