Home / 141,489.66-195,283.46-81,100.74

Finding the Fourth Proportional to 141,489.66, 195,283.46 and 81,100.74

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Solution

The fourth proportional to 141,489.66, 195,283.46 and 81,100.74 is: 111,934.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,489.66 : 195,283.46 = 81,100.74 : x
  2. Step 2: Convert to fraction form
    141,489.66/195,283.46 = 81,100.74/x
  3. Step 3: Cross multiply
    141,489.66x = 195,283.46 × 81,100.74
  4. Step 4: Simplify right side
    141,489.66x = 15,837,633,594.63
  5. Step 5: Solve for x
    x = 15,837,633,594.63/141,489.66
  6. Step 6: Final answer
    x = 111,934.92

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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.