Home / 148,314.80-204,160.20-129,419.12

Finding the Fourth Proportional to 148,314.80, 204,160.20 and 129,419.12

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Solution

The fourth proportional to 148,314.80, 204,160.20 and 129,419.12 is: 178,149.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,314.80 : 204,160.20 = 129,419.12 : x
  2. Step 2: Convert to fraction form
    148,314.80/204,160.20 = 129,419.12/x
  3. Step 3: Cross multiply
    148,314.80x = 204,160.20 × 129,419.12
  4. Step 4: Simplify right side
    148,314.80x = 26,422,233,423.02
  5. Step 5: Solve for x
    x = 26,422,233,423.02/148,314.80
  6. Step 6: Final answer
    x = 178,149.68

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1.5x scale

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.