Home / 239,082.10-329,920.41-137,111.86

Finding the Fourth Proportional to 239,082.10, 329,920.41 and 137,111.86

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Solution

The fourth proportional to 239,082.10, 329,920.41 and 137,111.86 is: 189,206.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,082.10 : 329,920.41 = 137,111.86 : x
  2. Step 2: Convert to fraction form
    239,082.10/329,920.41 = 137,111.86/x
  3. Step 3: Cross multiply
    239,082.10x = 329,920.41 × 137,111.86
  4. Step 4: Simplify right side
    239,082.10x = 45,236,001,067.06
  5. Step 5: Solve for x
    x = 45,236,001,067.06/239,082.10
  6. Step 6: Final answer
    x = 189,206.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.