Home / 156,691.20-235,036.80-154,358.40

Finding the Fourth Proportional to 156,691.20, 235,036.80 and 154,358.40

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Solution

The fourth proportional to 156,691.20, 235,036.80 and 154,358.40 is: 231,537.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,691.20 : 235,036.80 = 154,358.40 : x
  2. Step 2: Convert to fraction form
    156,691.20/235,036.80 = 154,358.40/x
  3. Step 3: Cross multiply
    156,691.20x = 235,036.80 × 154,358.40
  4. Step 4: Simplify right side
    156,691.20x = 36,279,904,389.12
  5. Step 5: Solve for x
    x = 36,279,904,389.12/156,691.20
  6. Step 6: Final answer
    x = 231,537.60

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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.