Home / 125,833.46-173,657.65-72,121.92

Finding the Fourth Proportional to 125,833.46, 173,657.65 and 72,121.92

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Solution

The fourth proportional to 125,833.46, 173,657.65 and 72,121.92 is: 99,532.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,833.46 : 173,657.65 = 72,121.92 : x
  2. Step 2: Convert to fraction form
    125,833.46/173,657.65 = 72,121.92/x
  3. Step 3: Cross multiply
    125,833.46x = 173,657.65 × 72,121.92
  4. Step 4: Simplify right side
    125,833.46x = 12,524,522,780.08
  5. Step 5: Solve for x
    x = 12,524,522,780.08/125,833.46
  6. Step 6: Final answer
    x = 99,532.54

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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.