Home / 128,116.46-192,209.92-61,612.22

Finding the Fourth Proportional to 128,116.46, 192,209.92 and 61,612.22

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Solution

The fourth proportional to 128,116.46, 192,209.92 and 61,612.22 is: 92,435.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,116.46 : 192,209.92 = 61,612.22 : x
  2. Step 2: Convert to fraction form
    128,116.46/192,209.92 = 61,612.22/x
  3. Step 3: Cross multiply
    128,116.46x = 192,209.92 × 61,612.22
  4. Step 4: Simplify right side
    128,116.46x = 11,842,479,877.22
  5. Step 5: Solve for x
    x = 11,842,479,877.22/128,116.46
  6. Step 6: Final answer
    x = 92,435.27

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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.