Home / 99,117.60-148,372.65-54,608.10

Finding the Fourth Proportional to 99,117.60, 148,372.65 and 54,608.10

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Solution

The fourth proportional to 99,117.60, 148,372.65 and 54,608.10 is: 81,744.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,117.60 : 148,372.65 = 54,608.10 : x
  2. Step 2: Convert to fraction form
    99,117.60/148,372.65 = 54,608.10/x
  3. Step 3: Cross multiply
    99,117.60x = 148,372.65 × 54,608.10
  4. Step 4: Simplify right side
    99,117.60x = 8,102,348,508.47
  5. Step 5: Solve for x
    x = 8,102,348,508.47/99,117.60
  6. Step 6: Final answer
    x = 81,744.80

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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.