Home / 131,682.20-181,720.16-71,251.52

Finding the Fourth Proportional to 131,682.20, 181,720.16 and 71,251.52

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Solution

The fourth proportional to 131,682.20, 181,720.16 and 71,251.52 is: 98,326.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,682.20 : 181,720.16 = 71,251.52 : x
  2. Step 2: Convert to fraction form
    131,682.20/181,720.16 = 71,251.52/x
  3. Step 3: Cross multiply
    131,682.20x = 181,720.16 × 71,251.52
  4. Step 4: Simplify right side
    131,682.20x = 12,947,837,614.64
  5. Step 5: Solve for x
    x = 12,947,837,614.64/131,682.20
  6. Step 6: Final answer
    x = 98,326.41

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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.