Home / 125,142.14-172,696.76-68,553.51

Finding the Fourth Proportional to 125,142.14, 172,696.76 and 68,553.51

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Solution

The fourth proportional to 125,142.14, 172,696.76 and 68,553.51 is: 94,604.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,142.14 : 172,696.76 = 68,553.51 : x
  2. Step 2: Convert to fraction form
    125,142.14/172,696.76 = 68,553.51/x
  3. Step 3: Cross multiply
    125,142.14x = 172,696.76 × 68,553.51
  4. Step 4: Simplify right side
    125,142.14x = 11,838,968,720.86
  5. Step 5: Solve for x
    x = 11,838,968,720.86/125,142.14
  6. Step 6: Final answer
    x = 94,604.18

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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.