Home / 132,490.47-182,839.20-72,062.43

Finding the Fourth Proportional to 132,490.47, 182,839.20 and 72,062.43

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Solution

The fourth proportional to 132,490.47, 182,839.20 and 72,062.43 is: 99,447.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,490.47 : 182,839.20 = 72,062.43 : x
  2. Step 2: Convert to fraction form
    132,490.47/182,839.20 = 72,062.43/x
  3. Step 3: Cross multiply
    132,490.47x = 182,839.20 × 72,062.43
  4. Step 4: Simplify right side
    132,490.47x = 13,175,837,051.26
  5. Step 5: Solve for x
    x = 13,175,837,051.26/132,490.47
  6. Step 6: Final answer
    x = 99,447.43

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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.