Home / 131,834.88-181,932.30-71,405.64

Finding the Fourth Proportional to 131,834.88, 181,932.30 and 71,405.64

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Solution

The fourth proportional to 131,834.88, 181,932.30 and 71,405.64 is: 98,539.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,834.88 : 181,932.30 = 71,405.64 : x
  2. Step 2: Convert to fraction form
    131,834.88/181,932.30 = 71,405.64/x
  3. Step 3: Cross multiply
    131,834.88x = 181,932.30 × 71,405.64
  4. Step 4: Simplify right side
    131,834.88x = 12,990,992,318.17
  5. Step 5: Solve for x
    x = 12,990,992,318.17/131,834.88
  6. Step 6: Final answer
    x = 98,539.87

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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.