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Finding the Fourth Proportional to 115,026.30, 172,545.30 and 36,141.30

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Solution

The fourth proportional to 115,026.30, 172,545.30 and 36,141.30 is: 54,213.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,026.30 : 172,545.30 = 36,141.30 : x
  2. Step 2: Convert to fraction form
    115,026.30/172,545.30 = 36,141.30/x
  3. Step 3: Cross multiply
    115,026.30x = 172,545.30 × 36,141.30
  4. Step 4: Simplify right side
    115,026.30x = 6,236,011,450.89
  5. Step 5: Solve for x
    x = 6,236,011,450.89/115,026.30
  6. Step 6: Final answer
    x = 54,213.79

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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.