Home / 143,937.30-215,711.55-127,218.90

Finding the Fourth Proportional to 143,937.30, 215,711.55 and 127,218.90

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Solution

The fourth proportional to 143,937.30, 215,711.55 and 127,218.90 is: 190,656.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,937.30 : 215,711.55 = 127,218.90 : x
  2. Step 2: Convert to fraction form
    143,937.30/215,711.55 = 127,218.90/x
  3. Step 3: Cross multiply
    143,937.30x = 215,711.55 × 127,218.90
  4. Step 4: Simplify right side
    143,937.30x = 27,442,586,108.30
  5. Step 5: Solve for x
    x = 27,442,586,108.30/143,937.30
  6. Step 6: Final answer
    x = 190,656.53

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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.