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Finding the Fourth Proportional to 126,479.68, 174,552.32 and 69,892

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Solution

The fourth proportional to 126,479.68, 174,552.32 and 69,892 is: 96,456.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,479.68 : 174,552.32 = 69,892 : x
  2. Step 2: Convert to fraction form
    126,479.68/174,552.32 = 69,892/x
  3. Step 3: Cross multiply
    126,479.68x = 174,552.32 × 69,892
  4. Step 4: Simplify right side
    126,479.68x = 12,199,810,749.44
  5. Step 5: Solve for x
    x = 12,199,810,749.44/126,479.68
  6. Step 6: Final answer
    x = 96,456.69

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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.