Home / 124,720.70-172,111.76-68,132.30

Finding the Fourth Proportional to 124,720.70, 172,111.76 and 68,132.30

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Solution

The fourth proportional to 124,720.70, 172,111.76 and 68,132.30 is: 94,021.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,720.70 : 172,111.76 = 68,132.30 : x
  2. Step 2: Convert to fraction form
    124,720.70/172,111.76 = 68,132.30/x
  3. Step 3: Cross multiply
    124,720.70x = 172,111.76 × 68,132.30
  4. Step 4: Simplify right side
    124,720.70x = 11,726,370,065.85
  5. Step 5: Solve for x
    x = 11,726,370,065.85/124,720.70
  6. Step 6: Final answer
    x = 94,021.04

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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.