Home / 98,220.83-147,404.57-66,555.78

Finding the Fourth Proportional to 98,220.83, 147,404.57 and 66,555.78

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Solution

The fourth proportional to 98,220.83, 147,404.57 and 66,555.78 is: 99,883.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,220.83 : 147,404.57 = 66,555.78 : x
  2. Step 2: Convert to fraction form
    98,220.83/147,404.57 = 66,555.78/x
  3. Step 3: Cross multiply
    98,220.83x = 147,404.57 × 66,555.78
  4. Step 4: Simplify right side
    98,220.83x = 9,810,625,799.14
  5. Step 5: Solve for x
    x = 9,810,625,799.14/98,220.83
  6. Step 6: Final answer
    x = 99,883.36

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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.