Home / 154,221.60-231,332.40-71,115.60

Finding the Fourth Proportional to 154,221.60, 231,332.40 and 71,115.60

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Solution

The fourth proportional to 154,221.60, 231,332.40 and 71,115.60 is: 106,673.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,221.60 : 231,332.40 = 71,115.60 : x
  2. Step 2: Convert to fraction form
    154,221.60/231,332.40 = 71,115.60/x
  3. Step 3: Cross multiply
    154,221.60x = 231,332.40 × 71,115.60
  4. Step 4: Simplify right side
    154,221.60x = 16,451,342,425.44
  5. Step 5: Solve for x
    x = 16,451,342,425.44/154,221.60
  6. Step 6: Final answer
    x = 106,673.40

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1.5x scale

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.