Home / 121,520.30-182,626.05-106,313.90

Finding the Fourth Proportional to 121,520.30, 182,626.05 and 106,313.90

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Solution

The fourth proportional to 121,520.30, 182,626.05 and 106,313.90 is: 159,773.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,520.30 : 182,626.05 = 106,313.90 : x
  2. Step 2: Convert to fraction form
    121,520.30/182,626.05 = 106,313.90/x
  3. Step 3: Cross multiply
    121,520.30x = 182,626.05 × 106,313.90
  4. Step 4: Simplify right side
    121,520.30x = 19,415,687,617.10
  5. Step 5: Solve for x
    x = 19,415,687,617.10/121,520.30
  6. Step 6: Final answer
    x = 159,773.20

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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.