Home / 124,768.92-172,178.28-68,180.64

Finding the Fourth Proportional to 124,768.92, 172,178.28 and 68,180.64

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Solution

The fourth proportional to 124,768.92, 172,178.28 and 68,180.64 is: 94,087.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,768.92 : 172,178.28 = 68,180.64 : x
  2. Step 2: Convert to fraction form
    124,768.92/172,178.28 = 68,180.64/x
  3. Step 3: Cross multiply
    124,768.92x = 172,178.28 × 68,180.64
  4. Step 4: Simplify right side
    124,768.92x = 11,739,225,324.50
  5. Step 5: Solve for x
    x = 11,739,225,324.50/124,768.92
  6. Step 6: Final answer
    x = 94,087.74

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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.