Home / 127,231.43-189,452.56-122,685.11

Finding the Fourth Proportional to 127,231.43, 189,452.56 and 122,685.11

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Solution

The fourth proportional to 127,231.43, 189,452.56 and 122,685.11 is: 182,682.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,231.43 : 189,452.56 = 122,685.11 : x
  2. Step 2: Convert to fraction form
    127,231.43/189,452.56 = 122,685.11/x
  3. Step 3: Cross multiply
    127,231.43x = 189,452.56 × 122,685.11
  4. Step 4: Simplify right side
    127,231.43x = 23,243,006,909.41
  5. Step 5: Solve for x
    x = 23,243,006,909.41/127,231.43
  6. Step 6: Final answer
    x = 182,682.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.