Home / 141,698.20-195,537.18-81,225.48

Finding the Fourth Proportional to 141,698.20, 195,537.18 and 81,225.48

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Solution

The fourth proportional to 141,698.20, 195,537.18 and 81,225.48 is: 112,087.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,698.20 : 195,537.18 = 81,225.48 : x
  2. Step 2: Convert to fraction form
    141,698.20/195,537.18 = 81,225.48/x
  3. Step 3: Cross multiply
    141,698.20x = 195,537.18 × 81,225.48
  4. Step 4: Simplify right side
    141,698.20x = 15,882,601,303.35
  5. Step 5: Solve for x
    x = 15,882,601,303.35/141,698.20
  6. Step 6: Final answer
    x = 112,087.53

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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.