Home / 124,734.96-172,134.36-68,147.28

Finding the Fourth Proportional to 124,734.96, 172,134.36 and 68,147.28

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Solution

The fourth proportional to 124,734.96, 172,134.36 and 68,147.28 is: 94,043.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,734.96 : 172,134.36 = 68,147.28 : x
  2. Step 2: Convert to fraction form
    124,734.96/172,134.36 = 68,147.28/x
  3. Step 3: Cross multiply
    124,734.96x = 172,134.36 × 68,147.28
  4. Step 4: Simplify right side
    124,734.96x = 11,730,488,428.54
  5. Step 5: Solve for x
    x = 11,730,488,428.54/124,734.96
  6. Step 6: Final answer
    x = 94,043.31

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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.