Home / 124,645.92-172,015.44-68,061.60

Finding the Fourth Proportional to 124,645.92, 172,015.44 and 68,061.60

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Solution

The fourth proportional to 124,645.92, 172,015.44 and 68,061.60 is: 93,927.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,645.92 : 172,015.44 = 68,061.60 : x
  2. Step 2: Convert to fraction form
    124,645.92/172,015.44 = 68,061.60/x
  3. Step 3: Cross multiply
    124,645.92x = 172,015.44 × 68,061.60
  4. Step 4: Simplify right side
    124,645.92x = 11,707,646,071.10
  5. Step 5: Solve for x
    x = 11,707,646,071.10/124,645.92
  6. Step 6: Final answer
    x = 93,927.23

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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.