Home / 103,629.88-155,346.18-66,084.52

Finding the Fourth Proportional to 103,629.88, 155,346.18 and 66,084.52

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Solution

The fourth proportional to 103,629.88, 155,346.18 and 66,084.52 is: 99,063.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,629.88 : 155,346.18 = 66,084.52 : x
  2. Step 2: Convert to fraction form
    103,629.88/155,346.18 = 66,084.52/x
  3. Step 3: Cross multiply
    103,629.88x = 155,346.18 × 66,084.52
  4. Step 4: Simplify right side
    103,629.88x = 10,265,977,739.13
  5. Step 5: Solve for x
    x = 10,265,977,739.13/103,629.88
  6. Step 6: Final answer
    x = 99,063.88

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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.