Home / 124,821.18-187,243.65-45,936.90

Finding the Fourth Proportional to 124,821.18, 187,243.65 and 45,936.90

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Solution

The fourth proportional to 124,821.18, 187,243.65 and 45,936.90 is: 68,909.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,821.18 : 187,243.65 = 45,936.90 : x
  2. Step 2: Convert to fraction form
    124,821.18/187,243.65 = 45,936.90/x
  3. Step 3: Cross multiply
    124,821.18x = 187,243.65 × 45,936.90
  4. Step 4: Simplify right side
    124,821.18x = 8,601,392,825.69
  5. Step 5: Solve for x
    x = 8,601,392,825.69/124,821.18
  6. Step 6: Final answer
    x = 68,909.72

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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.