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Finding the Fourth Proportional to 84,158.88, 126,237.95 and 34,238.57

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Solution

The fourth proportional to 84,158.88, 126,237.95 and 34,238.57 is: 51,357.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,158.88 : 126,237.95 = 34,238.57 : x
  2. Step 2: Convert to fraction form
    84,158.88/126,237.95 = 34,238.57/x
  3. Step 3: Cross multiply
    84,158.88x = 126,237.95 × 34,238.57
  4. Step 4: Simplify right side
    84,158.88x = 4,322,206,085.35
  5. Step 5: Solve for x
    x = 4,322,206,085.35/84,158.88
  6. Step 6: Final answer
    x = 51,357.69

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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.