Home / 231,339.20-319,315.80-134,565.68

Finding the Fourth Proportional to 231,339.20, 319,315.80 and 134,565.68

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Solution

The fourth proportional to 231,339.20, 319,315.80 and 134,565.68 is: 185,740.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,339.20 : 319,315.80 = 134,565.68 : x
  2. Step 2: Convert to fraction form
    231,339.20/319,315.80 = 134,565.68/x
  3. Step 3: Cross multiply
    231,339.20x = 319,315.80 × 134,565.68
  4. Step 4: Simplify right side
    231,339.20x = 42,968,947,761.74
  5. Step 5: Solve for x
    x = 42,968,947,761.74/231,339.20
  6. Step 6: Final answer
    x = 185,740.02

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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.