Home / 129,378.47-194,067.63-58,217.94

Finding the Fourth Proportional to 129,378.47, 194,067.63 and 58,217.94

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Solution

The fourth proportional to 129,378.47, 194,067.63 and 58,217.94 is: 87,326.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,378.47 : 194,067.63 = 58,217.94 : x
  2. Step 2: Convert to fraction form
    129,378.47/194,067.63 = 58,217.94/x
  3. Step 3: Cross multiply
    129,378.47x = 194,067.63 × 58,217.94
  4. Step 4: Simplify right side
    129,378.47x = 11,298,217,639.28
  5. Step 5: Solve for x
    x = 11,298,217,639.28/129,378.47
  6. Step 6: Final answer
    x = 87,326.88

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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.