Home / 124,781.88-172,201.32-68,192.04

Finding the Fourth Proportional to 124,781.88, 172,201.32 and 68,192.04

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Solution

The fourth proportional to 124,781.88, 172,201.32 and 68,192.04 is: 94,106.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,781.88 : 172,201.32 = 68,192.04 : x
  2. Step 2: Convert to fraction form
    124,781.88/172,201.32 = 68,192.04/x
  3. Step 3: Cross multiply
    124,781.88x = 172,201.32 × 68,192.04
  4. Step 4: Simplify right side
    124,781.88x = 11,742,759,301.49
  5. Step 5: Solve for x
    x = 11,742,759,301.49/124,781.88
  6. Step 6: Final answer
    x = 94,106.29

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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.