Home / 141,441.15-195,188.51-81,031.35

Finding the Fourth Proportional to 141,441.15, 195,188.51 and 81,031.35

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Solution

The fourth proportional to 141,441.15, 195,188.51 and 81,031.35 is: 111,823.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,441.15 : 195,188.51 = 81,031.35 : x
  2. Step 2: Convert to fraction form
    141,441.15/195,188.51 = 81,031.35/x
  3. Step 3: Cross multiply
    141,441.15x = 195,188.51 × 81,031.35
  4. Step 4: Simplify right side
    141,441.15x = 15,816,388,469.79
  5. Step 5: Solve for x
    x = 15,816,388,469.79/141,441.15
  6. Step 6: Final answer
    x = 111,823.10

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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.