Home / 99,120.18-148,600.96-51,711.48

Finding the Fourth Proportional to 99,120.18, 148,600.96 and 51,711.48

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Solution

The fourth proportional to 99,120.18, 148,600.96 and 51,711.48 is: 77,525.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,120.18 : 148,600.96 = 51,711.48 : x
  2. Step 2: Convert to fraction form
    99,120.18/148,600.96 = 51,711.48/x
  3. Step 3: Cross multiply
    99,120.18x = 148,600.96 × 51,711.48
  4. Step 4: Simplify right side
    99,120.18x = 7,684,375,571.02
  5. Step 5: Solve for x
    x = 7,684,375,571.02/99,120.18
  6. Step 6: Final answer
    x = 77,525.84

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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.