Home / 120,738.10-181,107.15-95,854.90

Finding the Fourth Proportional to 120,738.10, 181,107.15 and 95,854.90

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Solution

The fourth proportional to 120,738.10, 181,107.15 and 95,854.90 is: 143,782.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,738.10 : 181,107.15 = 95,854.90 : x
  2. Step 2: Convert to fraction form
    120,738.10/181,107.15 = 95,854.90/x
  3. Step 3: Cross multiply
    120,738.10x = 181,107.15 × 95,854.90
  4. Step 4: Simplify right side
    120,738.10x = 17,360,007,752.54
  5. Step 5: Solve for x
    x = 17,360,007,752.54/120,738.10
  6. Step 6: Final answer
    x = 143,782.35

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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.