Home / 129,115.27-193,711.79-46,015.75

Finding the Fourth Proportional to 129,115.27, 193,711.79 and 46,015.75

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Solution

The fourth proportional to 129,115.27, 193,711.79 and 46,015.75 is: 69,037.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,115.27 : 193,711.79 = 46,015.75 : x
  2. Step 2: Convert to fraction form
    129,115.27/193,711.79 = 46,015.75/x
  3. Step 3: Cross multiply
    129,115.27x = 193,711.79 × 46,015.75
  4. Step 4: Simplify right side
    129,115.27x = 8,913,793,300.69
  5. Step 5: Solve for x
    x = 8,913,793,300.69/129,115.27
  6. Step 6: Final answer
    x = 69,037.48

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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.