Home / 123,230.04-169,979.16-80,791.32

Finding the Fourth Proportional to 123,230.04, 169,979.16 and 80,791.32

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Solution

The fourth proportional to 123,230.04, 169,979.16 and 80,791.32 is: 111,440.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,230.04 : 169,979.16 = 80,791.32 : x
  2. Step 2: Convert to fraction form
    123,230.04/169,979.16 = 80,791.32/x
  3. Step 3: Cross multiply
    123,230.04x = 169,979.16 × 80,791.32
  4. Step 4: Simplify right side
    123,230.04x = 13,732,840,708.89
  5. Step 5: Solve for x
    x = 13,732,840,708.89/123,230.04
  6. Step 6: Final answer
    x = 111,440.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.