Home / 205,434.95-283,680.56-129,086.33

Finding the Fourth Proportional to 205,434.95, 283,680.56 and 129,086.33

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Solution

The fourth proportional to 205,434.95, 283,680.56 and 129,086.33 is: 178,252.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,434.95 : 283,680.56 = 129,086.33 : x
  2. Step 2: Convert to fraction form
    205,434.95/283,680.56 = 129,086.33/x
  3. Step 3: Cross multiply
    205,434.95x = 283,680.56 × 129,086.33
  4. Step 4: Simplify right side
    205,434.95x = 36,619,281,287.06
  5. Step 5: Solve for x
    x = 36,619,281,287.06/205,434.95
  6. Step 6: Final answer
    x = 178,252.45

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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.