Home / 141,965.40-195,918.03-78,307.23

Finding the Fourth Proportional to 141,965.40, 195,918.03 and 78,307.23

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Solution

The fourth proportional to 141,965.40, 195,918.03 and 78,307.23 is: 108,067.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,965.40 : 195,918.03 = 78,307.23 : x
  2. Step 2: Convert to fraction form
    141,965.40/195,918.03 = 78,307.23/x
  3. Step 3: Cross multiply
    141,965.40x = 195,918.03 × 78,307.23
  4. Step 4: Simplify right side
    141,965.40x = 15,341,798,236.36
  5. Step 5: Solve for x
    x = 15,341,798,236.36/141,965.40
  6. Step 6: Final answer
    x = 108,067.16

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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.