Home / 141,571.41-195,368.58-77,909.21

Finding the Fourth Proportional to 141,571.41, 195,368.58 and 77,909.21

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Solution

The fourth proportional to 141,571.41, 195,368.58 and 77,909.21 is: 107,514.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,571.41 : 195,368.58 = 77,909.21 : x
  2. Step 2: Convert to fraction form
    141,571.41/195,368.58 = 77,909.21/x
  3. Step 3: Cross multiply
    141,571.41x = 195,368.58 × 77,909.21
  4. Step 4: Simplify right side
    141,571.41x = 15,221,011,726.62
  5. Step 5: Solve for x
    x = 15,221,011,726.62/141,571.41
  6. Step 6: Final answer
    x = 107,514.73

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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.