Home / 84,154.82-126,123.12-34,176.38

Finding the Fourth Proportional to 84,154.82, 126,123.12 and 34,176.38

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Solution

The fourth proportional to 84,154.82, 126,123.12 and 34,176.38 is: 51,220.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,154.82 : 126,123.12 = 34,176.38 : x
  2. Step 2: Convert to fraction form
    84,154.82/126,123.12 = 34,176.38/x
  3. Step 3: Cross multiply
    84,154.82x = 126,123.12 × 34,176.38
  4. Step 4: Simplify right side
    84,154.82x = 4,310,431,045.29
  5. Step 5: Solve for x
    x = 4,310,431,045.29/84,154.82
  6. Step 6: Final answer
    x = 51,220.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.