Home / 124,728.18-187,166.10-45,897.78

Finding the Fourth Proportional to 124,728.18, 187,166.10 and 45,897.78

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Solution

The fourth proportional to 124,728.18, 187,166.10 and 45,897.78 is: 68,873.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,728.18 : 187,166.10 = 45,897.78 : x
  2. Step 2: Convert to fraction form
    124,728.18/187,166.10 = 45,897.78/x
  3. Step 3: Cross multiply
    124,728.18x = 187,166.10 × 45,897.78
  4. Step 4: Simplify right side
    124,728.18x = 8,590,508,481.26
  5. Step 5: Solve for x
    x = 8,590,508,481.26/124,728.18
  6. Step 6: Final answer
    x = 68,873.84

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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.