Home / 124,781.27-172,197.77-68,192.64

Finding the Fourth Proportional to 124,781.27, 172,197.77 and 68,192.64

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Solution

The fourth proportional to 124,781.27, 172,197.77 and 68,192.64 is: 94,105.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,781.27 : 172,197.77 = 68,192.64 : x
  2. Step 2: Convert to fraction form
    124,781.27/172,197.77 = 68,192.64/x
  3. Step 3: Cross multiply
    124,781.27x = 172,197.77 × 68,192.64
  4. Step 4: Simplify right side
    124,781.27x = 11,742,620,197.45
  5. Step 5: Solve for x
    x = 11,742,620,197.45/124,781.27
  6. Step 6: Final answer
    x = 94,105.64

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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.