Home / 115,599.20-173,456.40-65,717.60

Finding the Fourth Proportional to 115,599.20, 173,456.40 and 65,717.60

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Solution

The fourth proportional to 115,599.20, 173,456.40 and 65,717.60 is: 98,609.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,599.20 : 173,456.40 = 65,717.60 : x
  2. Step 2: Convert to fraction form
    115,599.20/173,456.40 = 65,717.60/x
  3. Step 3: Cross multiply
    115,599.20x = 173,456.40 × 65,717.60
  4. Step 4: Simplify right side
    115,599.20x = 11,399,138,312.64
  5. Step 5: Solve for x
    x = 11,399,138,312.64/115,599.20
  6. Step 6: Final answer
    x = 98,609.15

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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.