Home / 129,775.57-194,594.00-66,570.05

Finding the Fourth Proportional to 129,775.57, 194,594.00 and 66,570.05

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Solution

The fourth proportional to 129,775.57, 194,594.00 and 66,570.05 is: 99,819.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,775.57 : 194,594.00 = 66,570.05 : x
  2. Step 2: Convert to fraction form
    129,775.57/194,594.00 = 66,570.05/x
  3. Step 3: Cross multiply
    129,775.57x = 194,594.00 × 66,570.05
  4. Step 4: Simplify right side
    129,775.57x = 12,954,132,463.33
  5. Step 5: Solve for x
    x = 12,954,132,463.33/129,775.57
  6. Step 6: Final answer
    x = 99,819.50

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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.