Home / 131,988.98-182,144.21-71,559.43

Finding the Fourth Proportional to 131,988.98, 182,144.21 and 71,559.43

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Solution

The fourth proportional to 131,988.98, 182,144.21 and 71,559.43 is: 98,751.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,988.98 : 182,144.21 = 71,559.43 : x
  2. Step 2: Convert to fraction form
    131,988.98/182,144.21 = 71,559.43/x
  3. Step 3: Cross multiply
    131,988.98x = 182,144.21 × 71,559.43
  4. Step 4: Simplify right side
    131,988.98x = 13,034,135,845.40
  5. Step 5: Solve for x
    x = 13,034,135,845.40/131,988.98
  6. Step 6: Final answer
    x = 98,751.70

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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.