Home / 99,566.40-149,349.60-91,963.20

Finding the Fourth Proportional to 99,566.40, 149,349.60 and 91,963.20

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Solution

The fourth proportional to 99,566.40, 149,349.60 and 91,963.20 is: 137,944.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,566.40 : 149,349.60 = 91,963.20 : x
  2. Step 2: Convert to fraction form
    99,566.40/149,349.60 = 91,963.20/x
  3. Step 3: Cross multiply
    99,566.40x = 149,349.60 × 91,963.20
  4. Step 4: Simplify right side
    99,566.40x = 13,734,667,134.72
  5. Step 5: Solve for x
    x = 13,734,667,134.72/99,566.40
  6. Step 6: Final answer
    x = 137,944.80

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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.