Home / 141,571.51-195,368.73-77,909.31

Finding the Fourth Proportional to 141,571.51, 195,368.73 and 77,909.31

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Solution

The fourth proportional to 141,571.51, 195,368.73 and 77,909.31 is: 107,514.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,571.51 : 195,368.73 = 77,909.31 : x
  2. Step 2: Convert to fraction form
    141,571.51/195,368.73 = 77,909.31/x
  3. Step 3: Cross multiply
    141,571.51x = 195,368.73 × 77,909.31
  4. Step 4: Simplify right side
    141,571.51x = 15,221,042,657.72
  5. Step 5: Solve for x
    x = 15,221,042,657.72/141,571.51
  6. Step 6: Final answer
    x = 107,514.87

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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.