Home / 132,640.50-182,638.53-99,982.38

Finding the Fourth Proportional to 132,640.50, 182,638.53 and 99,982.38

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Solution

The fourth proportional to 132,640.50, 182,638.53 and 99,982.38 is: 137,670.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,640.50 : 182,638.53 = 99,982.38 : x
  2. Step 2: Convert to fraction form
    132,640.50/182,638.53 = 99,982.38/x
  3. Step 3: Cross multiply
    132,640.50x = 182,638.53 × 99,982.38
  4. Step 4: Simplify right side
    132,640.50x = 18,260,634,909.10
  5. Step 5: Solve for x
    x = 18,260,634,909.10/132,640.50
  6. Step 6: Final answer
    x = 137,670.13

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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.