Home / 128,118.46-192,212.92-61,614.22

Finding the Fourth Proportional to 128,118.46, 192,212.92 and 61,614.22

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Solution

The fourth proportional to 128,118.46, 192,212.92 and 61,614.22 is: 92,438.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,118.46 : 192,212.92 = 61,614.22 : x
  2. Step 2: Convert to fraction form
    128,118.46/192,212.92 = 61,614.22/x
  3. Step 3: Cross multiply
    128,118.46x = 192,212.92 × 61,614.22
  4. Step 4: Simplify right side
    128,118.46x = 11,843,049,139.72
  5. Step 5: Solve for x
    x = 11,843,049,139.72/128,118.46
  6. Step 6: Final answer
    x = 92,438.27

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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.