Home / 143,593.20-215,785.08-77,082.48

Finding the Fourth Proportional to 143,593.20, 215,785.08 and 77,082.48

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Solution

The fourth proportional to 143,593.20, 215,785.08 and 77,082.48 is: 115,835.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,593.20 : 215,785.08 = 77,082.48 : x
  2. Step 2: Convert to fraction form
    143,593.20/215,785.08 = 77,082.48/x
  3. Step 3: Cross multiply
    143,593.20x = 215,785.08 × 77,082.48
  4. Step 4: Simplify right side
    143,593.20x = 16,633,249,113.40
  5. Step 5: Solve for x
    x = 16,633,249,113.40/143,593.20
  6. Step 6: Final answer
    x = 115,835.91

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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.