Home / 231,826.92-319,929.06-129,856.74

Finding the Fourth Proportional to 231,826.92, 319,929.06 and 129,856.74

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Solution

The fourth proportional to 231,826.92, 319,929.06 and 129,856.74 is: 179,206.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,826.92 : 319,929.06 = 129,856.74 : x
  2. Step 2: Convert to fraction form
    231,826.92/319,929.06 = 129,856.74/x
  3. Step 3: Cross multiply
    231,826.92x = 319,929.06 × 129,856.74
  4. Step 4: Simplify right side
    231,826.92x = 41,544,944,762.86
  5. Step 5: Solve for x
    x = 41,544,944,762.86/231,826.92
  6. Step 6: Final answer
    x = 179,206.73

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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.