Home / 115,878.10-173,687.55-65,982.10

Finding the Fourth Proportional to 115,878.10, 173,687.55 and 65,982.10

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Solution

The fourth proportional to 115,878.10, 173,687.55 and 65,982.10 is: 98,899.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,878.10 : 173,687.55 = 65,982.10 : x
  2. Step 2: Convert to fraction form
    115,878.10/173,687.55 = 65,982.10/x
  3. Step 3: Cross multiply
    115,878.10x = 173,687.55 × 65,982.10
  4. Step 4: Simplify right side
    115,878.10x = 11,460,269,292.86
  5. Step 5: Solve for x
    x = 11,460,269,292.86/115,878.10
  6. Step 6: Final answer
    x = 98,899.35

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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.