Home / 131,725.80-181,781.58-71,296.43

Finding the Fourth Proportional to 131,725.80, 181,781.58 and 71,296.43

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Solution

The fourth proportional to 131,725.80, 181,781.58 and 71,296.43 is: 98,389.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,725.80 : 181,781.58 = 71,296.43 : x
  2. Step 2: Convert to fraction form
    131,725.80/181,781.58 = 71,296.43/x
  3. Step 3: Cross multiply
    131,725.80x = 181,781.58 × 71,296.43
  4. Step 4: Simplify right side
    131,725.80x = 12,960,376,784.85
  5. Step 5: Solve for x
    x = 12,960,376,784.85/131,725.80
  6. Step 6: Final answer
    x = 98,389.06

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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.