Home / 99,165.16-136,844.58-54,452.20

Finding the Fourth Proportional to 99,165.16, 136,844.58 and 54,452.20

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Solution

The fourth proportional to 99,165.16, 136,844.58 and 54,452.20 is: 75,142.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,165.16 : 136,844.58 = 54,452.20 : x
  2. Step 2: Convert to fraction form
    99,165.16/136,844.58 = 54,452.20/x
  3. Step 3: Cross multiply
    99,165.16x = 136,844.58 × 54,452.20
  4. Step 4: Simplify right side
    99,165.16x = 7,451,488,439.08
  5. Step 5: Solve for x
    x = 7,451,488,439.08/99,165.16
  6. Step 6: Final answer
    x = 75,142.20

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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.