Home / 143,791.10-215,686.65-38,620.70

Finding the Fourth Proportional to 143,791.10, 215,686.65 and 38,620.70

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Solution

The fourth proportional to 143,791.10, 215,686.65 and 38,620.70 is: 57,931.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,791.10 : 215,686.65 = 38,620.70 : x
  2. Step 2: Convert to fraction form
    143,791.10/215,686.65 = 38,620.70/x
  3. Step 3: Cross multiply
    143,791.10x = 215,686.65 × 38,620.70
  4. Step 4: Simplify right side
    143,791.10x = 8,329,969,403.66
  5. Step 5: Solve for x
    x = 8,329,969,403.66/143,791.10
  6. Step 6: Final answer
    x = 57,931.05

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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.