Home / 141,615.32-195,423.36-81,143.91

Finding the Fourth Proportional to 141,615.32, 195,423.36 and 81,143.91

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Solution

The fourth proportional to 141,615.32, 195,423.36 and 81,143.91 is: 111,975.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,615.32 : 195,423.36 = 81,143.91 : x
  2. Step 2: Convert to fraction form
    141,615.32/195,423.36 = 81,143.91/x
  3. Step 3: Cross multiply
    141,615.32x = 195,423.36 × 81,143.91
  4. Step 4: Simplify right side
    141,615.32x = 15,857,415,535.74
  5. Step 5: Solve for x
    x = 15,857,415,535.74/141,615.32
  6. Step 6: Final answer
    x = 111,975.29

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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.