Home / 99,562.20-149,489.10-77,400.60

Finding the Fourth Proportional to 99,562.20, 149,489.10 and 77,400.60

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Solution

The fourth proportional to 99,562.20, 149,489.10 and 77,400.60 is: 116,214.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,562.20 : 149,489.10 = 77,400.60 : x
  2. Step 2: Convert to fraction form
    99,562.20/149,489.10 = 77,400.60/x
  3. Step 3: Cross multiply
    99,562.20x = 149,489.10 × 77,400.60
  4. Step 4: Simplify right side
    99,562.20x = 11,570,546,033.46
  5. Step 5: Solve for x
    x = 11,570,546,033.46/99,562.20
  6. Step 6: Final answer
    x = 116,214.25

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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.