Home / 143,825.10-215,932.05-91,337.10

Finding the Fourth Proportional to 143,825.10, 215,932.05 and 91,337.10

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Solution

The fourth proportional to 143,825.10, 215,932.05 and 91,337.10 is: 137,129.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,825.10 : 215,932.05 = 91,337.10 : x
  2. Step 2: Convert to fraction form
    143,825.10/215,932.05 = 91,337.10/x
  3. Step 3: Cross multiply
    143,825.10x = 215,932.05 × 91,337.10
  4. Step 4: Simplify right side
    143,825.10x = 19,722,607,244.06
  5. Step 5: Solve for x
    x = 19,722,607,244.06/143,825.10
  6. Step 6: Final answer
    x = 137,129.11

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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.