Home / 115,537.20-173,363.40-65,655.60

Finding the Fourth Proportional to 115,537.20, 173,363.40 and 65,655.60

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Solution

The fourth proportional to 115,537.20, 173,363.40 and 65,655.60 is: 98,516.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,537.20 : 173,363.40 = 65,655.60 : x
  2. Step 2: Convert to fraction form
    115,537.20/173,363.40 = 65,655.60/x
  3. Step 3: Cross multiply
    115,537.20x = 173,363.40 × 65,655.60
  4. Step 4: Simplify right side
    115,537.20x = 11,382,278,045.04
  5. Step 5: Solve for x
    x = 11,382,278,045.04/115,537.20
  6. Step 6: Final answer
    x = 98,516.13

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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.