Home / 115,604.10-173,406.15-74,132.10

Finding the Fourth Proportional to 115,604.10, 173,406.15 and 74,132.10

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Solution

The fourth proportional to 115,604.10, 173,406.15 and 74,132.10 is: 111,198.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,604.10 : 173,406.15 = 74,132.10 : x
  2. Step 2: Convert to fraction form
    115,604.10/173,406.15 = 74,132.10/x
  3. Step 3: Cross multiply
    115,604.10x = 173,406.15 × 74,132.10
  4. Step 4: Simplify right side
    115,604.10x = 12,854,962,052.42
  5. Step 5: Solve for x
    x = 12,854,962,052.42/115,604.10
  6. Step 6: Final answer
    x = 111,198.15

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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.