Home / 129,436.91-193,896.91-102,827.96

Finding the Fourth Proportional to 129,436.91, 193,896.91 and 102,827.96

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Solution

The fourth proportional to 129,436.91, 193,896.91 and 102,827.96 is: 154,036.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,436.91 : 193,896.91 = 102,827.96 : x
  2. Step 2: Convert to fraction form
    129,436.91/193,896.91 = 102,827.96/x
  3. Step 3: Cross multiply
    129,436.91x = 193,896.91 × 102,827.96
  4. Step 4: Simplify right side
    129,436.91x = 19,938,023,335.64
  5. Step 5: Solve for x
    x = 19,938,023,335.64/129,436.91
  6. Step 6: Final answer
    x = 154,036.61

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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.