Home / 102,945.11-154,430.15-36,371.61

Finding the Fourth Proportional to 102,945.11, 154,430.15 and 36,371.61

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Solution

The fourth proportional to 102,945.11, 154,430.15 and 36,371.61 is: 54,561.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,945.11 : 154,430.15 = 36,371.61 : x
  2. Step 2: Convert to fraction form
    102,945.11/154,430.15 = 36,371.61/x
  3. Step 3: Cross multiply
    102,945.11x = 154,430.15 × 36,371.61
  4. Step 4: Simplify right side
    102,945.11x = 5,616,873,006.18
  5. Step 5: Solve for x
    x = 5,616,873,006.18/102,945.11
  6. Step 6: Final answer
    x = 54,561.83

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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.