Home / 124,943.36-172,418.88-68,355.20

Finding the Fourth Proportional to 124,943.36, 172,418.88 and 68,355.20

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Solution

The fourth proportional to 124,943.36, 172,418.88 and 68,355.20 is: 94,328.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,943.36 : 172,418.88 = 68,355.20 : x
  2. Step 2: Convert to fraction form
    124,943.36/172,418.88 = 68,355.20/x
  3. Step 3: Cross multiply
    124,943.36x = 172,418.88 × 68,355.20
  4. Step 4: Simplify right side
    124,943.36x = 11,785,727,026.18
  5. Step 5: Solve for x
    x = 11,785,727,026.18/124,943.36
  6. Step 6: Final answer
    x = 94,328.56

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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.