Home / 205,191.06-283,168.43-128,713.38

Finding the Fourth Proportional to 205,191.06, 283,168.43 and 128,713.38

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Solution

The fourth proportional to 205,191.06, 283,168.43 and 128,713.38 is: 177,627.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,191.06 : 283,168.43 = 128,713.38 : x
  2. Step 2: Convert to fraction form
    205,191.06/283,168.43 = 128,713.38/x
  3. Step 3: Cross multiply
    205,191.06x = 283,168.43 × 128,713.38
  4. Step 4: Simplify right side
    205,191.06x = 36,447,565,670.24
  5. Step 5: Solve for x
    x = 36,447,565,670.24/205,191.06
  6. Step 6: Final answer
    x = 177,627.45

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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.