Home / 129,253.20-194,025.60-99,801.60

Finding the Fourth Proportional to 129,253.20, 194,025.60 and 99,801.60

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Solution

The fourth proportional to 129,253.20, 194,025.60 and 99,801.60 is: 149,814.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,253.20 : 194,025.60 = 99,801.60 : x
  2. Step 2: Convert to fraction form
    129,253.20/194,025.60 = 99,801.60/x
  3. Step 3: Cross multiply
    129,253.20x = 194,025.60 × 99,801.60
  4. Step 4: Simplify right side
    129,253.20x = 19,364,065,320.96
  5. Step 5: Solve for x
    x = 19,364,065,320.96/129,253.20
  6. Step 6: Final answer
    x = 149,814.98

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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.