Home / 124,736.92-172,140.82-68,147.08

Finding the Fourth Proportional to 124,736.92, 172,140.82 and 68,147.08

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Solution

The fourth proportional to 124,736.92, 172,140.82 and 68,147.08 is: 94,045.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,736.92 : 172,140.82 = 68,147.08 : x
  2. Step 2: Convert to fraction form
    124,736.92/172,140.82 = 68,147.08/x
  3. Step 3: Cross multiply
    124,736.92x = 172,140.82 × 68,147.08
  4. Step 4: Simplify right side
    124,736.92x = 11,730,894,231.81
  5. Step 5: Solve for x
    x = 11,730,894,231.81/124,736.92
  6. Step 6: Final answer
    x = 94,045.08

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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.