Home / 131,725.95-181,781.80-71,296.59

Finding the Fourth Proportional to 131,725.95, 181,781.80 and 71,296.59

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Solution

The fourth proportional to 131,725.95, 181,781.80 and 71,296.59 is: 98,389.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,725.95 : 181,781.80 = 71,296.59 : x
  2. Step 2: Convert to fraction form
    131,725.95/181,781.80 = 71,296.59/x
  3. Step 3: Cross multiply
    131,725.95x = 181,781.80 × 71,296.59
  4. Step 4: Simplify right side
    131,725.95x = 12,960,421,198.67
  5. Step 5: Solve for x
    x = 12,960,421,198.67/131,725.95
  6. Step 6: Final answer
    x = 98,389.28

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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.