Home / 205,535.55-283,619.13-129,030.20

Finding the Fourth Proportional to 205,535.55, 283,619.13 and 129,030.20

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Solution

The fourth proportional to 205,535.55, 283,619.13 and 129,030.20 is: 178,049.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,535.55 : 283,619.13 = 129,030.20 : x
  2. Step 2: Convert to fraction form
    205,535.55/283,619.13 = 129,030.20/x
  3. Step 3: Cross multiply
    205,535.55x = 283,619.13 × 129,030.20
  4. Step 4: Simplify right side
    205,535.55x = 36,595,431,649.63
  5. Step 5: Solve for x
    x = 36,595,431,649.63/205,535.55
  6. Step 6: Final answer
    x = 178,049.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.