Home / 141,860.12-195,780.75-105,987.86

Finding the Fourth Proportional to 141,860.12, 195,780.75 and 105,987.86

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Solution

The fourth proportional to 141,860.12, 195,780.75 and 105,987.86 is: 146,273.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,860.12 : 195,780.75 = 105,987.86 : x
  2. Step 2: Convert to fraction form
    141,860.12/195,780.75 = 105,987.86/x
  3. Step 3: Cross multiply
    141,860.12x = 195,780.75 × 105,987.86
  4. Step 4: Simplify right side
    141,860.12x = 20,750,382,721.70
  5. Step 5: Solve for x
    x = 20,750,382,721.70/141,860.12
  6. Step 6: Final answer
    x = 146,273.55

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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.