Home / 141,571.63-195,368.74-77,909.43

Finding the Fourth Proportional to 141,571.63, 195,368.74 and 77,909.43

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Solution

The fourth proportional to 141,571.63, 195,368.74 and 77,909.43 is: 107,514.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,571.63 : 195,368.74 = 77,909.43 : x
  2. Step 2: Convert to fraction form
    141,571.63/195,368.74 = 77,909.43/x
  3. Step 3: Cross multiply
    141,571.63x = 195,368.74 × 77,909.43
  4. Step 4: Simplify right side
    141,571.63x = 15,221,067,514.82
  5. Step 5: Solve for x
    x = 15,221,067,514.82/141,571.63
  6. Step 6: Final answer
    x = 107,514.95

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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.