Home / 84,164.82-126,138.12-34,186.38

Finding the Fourth Proportional to 84,164.82, 126,138.12 and 34,186.38

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Solution

The fourth proportional to 84,164.82, 126,138.12 and 34,186.38 is: 51,235.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,164.82 : 126,138.12 = 34,186.38 : x
  2. Step 2: Convert to fraction form
    84,164.82/126,138.12 = 34,186.38/x
  3. Step 3: Cross multiply
    84,164.82x = 126,138.12 × 34,186.38
  4. Step 4: Simplify right side
    84,164.82x = 4,312,205,702.81
  5. Step 5: Solve for x
    x = 4,312,205,702.81/84,164.82
  6. Step 6: Final answer
    x = 51,235.25

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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.