Home / 137,180.91-189,317-76,747.96

Finding the Fourth Proportional to 137,180.91, 189,317 and 76,747.96

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Solution

The fourth proportional to 137,180.91, 189,317 and 76,747.96 is: 105,916.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,180.91 : 189,317 = 76,747.96 : x
  2. Step 2: Convert to fraction form
    137,180.91/189,317 = 76,747.96/x
  3. Step 3: Cross multiply
    137,180.91x = 189,317 × 76,747.96
  4. Step 4: Simplify right side
    137,180.91x = 14,529,693,543.32
  5. Step 5: Solve for x
    x = 14,529,693,543.32/137,180.91
  6. Step 6: Final answer
    x = 105,916.29

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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.