Home / 124,738.68-172,138.86-68,151

Finding the Fourth Proportional to 124,738.68, 172,138.86 and 68,151

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Solution

The fourth proportional to 124,738.68, 172,138.86 and 68,151 is: 94,048.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,738.68 : 172,138.86 = 68,151 : x
  2. Step 2: Convert to fraction form
    124,738.68/172,138.86 = 68,151/x
  3. Step 3: Cross multiply
    124,738.68x = 172,138.86 × 68,151
  4. Step 4: Simplify right side
    124,738.68x = 11,731,435,447.86
  5. Step 5: Solve for x
    x = 11,731,435,447.86/124,738.68
  6. Step 6: Final answer
    x = 94,048.10

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1.5x scale

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.