Home / 141,571.08-195,368.13-77,908.88

Finding the Fourth Proportional to 141,571.08, 195,368.13 and 77,908.88

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Solution

The fourth proportional to 141,571.08, 195,368.13 and 77,908.88 is: 107,514.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,571.08 : 195,368.13 = 77,908.88 : x
  2. Step 2: Convert to fraction form
    141,571.08/195,368.13 = 77,908.88/x
  3. Step 3: Cross multiply
    141,571.08x = 195,368.13 × 77,908.88
  4. Step 4: Simplify right side
    141,571.08x = 15,220,912,195.99
  5. Step 5: Solve for x
    x = 15,220,912,195.99/141,571.08
  6. Step 6: Final answer
    x = 107,514.28

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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.