Home / 141,973.74-195,920.73-78,317.46

Finding the Fourth Proportional to 141,973.74, 195,920.73 and 78,317.46

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Solution

The fourth proportional to 141,973.74, 195,920.73 and 78,317.46 is: 108,076.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,973.74 : 195,920.73 = 78,317.46 : x
  2. Step 2: Convert to fraction form
    141,973.74/195,920.73 = 78,317.46/x
  3. Step 3: Cross multiply
    141,973.74x = 195,920.73 × 78,317.46
  4. Step 4: Simplify right side
    141,973.74x = 15,344,013,934.95
  5. Step 5: Solve for x
    x = 15,344,013,934.95/141,973.74
  6. Step 6: Final answer
    x = 108,076.42

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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.