Home / 124,742.76-172,143-68,152.92

Finding the Fourth Proportional to 124,742.76, 172,143 and 68,152.92

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Solution

The fourth proportional to 124,742.76, 172,143 and 68,152.92 is: 94,049.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,742.76 : 172,143 = 68,152.92 : x
  2. Step 2: Convert to fraction form
    124,742.76/172,143 = 68,152.92/x
  3. Step 3: Cross multiply
    124,742.76x = 172,143 × 68,152.92
  4. Step 4: Simplify right side
    124,742.76x = 11,732,048,107.56
  5. Step 5: Solve for x
    x = 11,732,048,107.56/124,742.76
  6. Step 6: Final answer
    x = 94,049.93

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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.