Home / 98,839.12-148,291.60-65,689.60

Finding the Fourth Proportional to 98,839.12, 148,291.60 and 65,689.60

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Solution

The fourth proportional to 98,839.12, 148,291.60 and 65,689.60 is: 98,556.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,839.12 : 148,291.60 = 65,689.60 : x
  2. Step 2: Convert to fraction form
    98,839.12/148,291.60 = 65,689.60/x
  3. Step 3: Cross multiply
    98,839.12x = 148,291.60 × 65,689.60
  4. Step 4: Simplify right side
    98,839.12x = 9,741,215,887.36
  5. Step 5: Solve for x
    x = 9,741,215,887.36/98,839.12
  6. Step 6: Final answer
    x = 98,556.28

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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.