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Finding the Fourth Proportional to 119,993.86, 179,993.76 and 31,251.34

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Solution

The fourth proportional to 119,993.86, 179,993.76 and 31,251.34 is: 46,877.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,993.86 : 179,993.76 = 31,251.34 : x
  2. Step 2: Convert to fraction form
    119,993.86/179,993.76 = 31,251.34/x
  3. Step 3: Cross multiply
    119,993.86x = 179,993.76 × 31,251.34
  4. Step 4: Simplify right side
    119,993.86x = 5,625,046,191.64
  5. Step 5: Solve for x
    x = 5,625,046,191.64/119,993.86
  6. Step 6: Final answer
    x = 46,877.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.