Home / 124,819.45-187,224.31-68,770.69

Finding the Fourth Proportional to 124,819.45, 187,224.31 and 68,770.69

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Solution

The fourth proportional to 124,819.45, 187,224.31 and 68,770.69 is: 103,153.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,819.45 : 187,224.31 = 68,770.69 : x
  2. Step 2: Convert to fraction form
    124,819.45/187,224.31 = 68,770.69/x
  3. Step 3: Cross multiply
    124,819.45x = 187,224.31 × 68,770.69
  4. Step 4: Simplify right side
    124,819.45x = 12,875,544,601.38
  5. Step 5: Solve for x
    x = 12,875,544,601.38/124,819.45
  6. Step 6: Final answer
    x = 103,153.35

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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.