Home / 136,125.23-187,869.51-82,428.89

Finding the Fourth Proportional to 136,125.23, 187,869.51 and 82,428.89

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Solution

The fourth proportional to 136,125.23, 187,869.51 and 82,428.89 is: 113,761.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,125.23 : 187,869.51 = 82,428.89 : x
  2. Step 2: Convert to fraction form
    136,125.23/187,869.51 = 82,428.89/x
  3. Step 3: Cross multiply
    136,125.23x = 187,869.51 × 82,428.89
  4. Step 4: Simplify right side
    136,125.23x = 15,485,874,234.80
  5. Step 5: Solve for x
    x = 15,485,874,234.80/136,125.23
  6. Step 6: Final answer
    x = 113,761.97

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1.5x scale

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.