Home / 129,617.76-194,426.64-31,121.76

Finding the Fourth Proportional to 129,617.76, 194,426.64 and 31,121.76

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Solution

The fourth proportional to 129,617.76, 194,426.64 and 31,121.76 is: 46,682.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,617.76 : 194,426.64 = 31,121.76 : x
  2. Step 2: Convert to fraction form
    129,617.76/194,426.64 = 31,121.76/x
  3. Step 3: Cross multiply
    129,617.76x = 194,426.64 × 31,121.76
  4. Step 4: Simplify right side
    129,617.76x = 6,050,899,227.69
  5. Step 5: Solve for x
    x = 6,050,899,227.69/129,617.76
  6. Step 6: Final answer
    x = 46,682.64

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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.