Home / 123,843.89-185,707.28-47,977.96

Finding the Fourth Proportional to 123,843.89, 185,707.28 and 47,977.96

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Solution

The fourth proportional to 123,843.89, 185,707.28 and 47,977.96 is: 71,944.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,843.89 : 185,707.28 = 47,977.96 : x
  2. Step 2: Convert to fraction form
    123,843.89/185,707.28 = 47,977.96/x
  3. Step 3: Cross multiply
    123,843.89x = 185,707.28 × 47,977.96
  4. Step 4: Simplify right side
    123,843.89x = 8,909,857,065.84
  5. Step 5: Solve for x
    x = 8,909,857,065.84/123,843.89
  6. Step 6: Final answer
    x = 71,944.26

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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.