Home / 141,448.78-195,144.07-80,987.11

Finding the Fourth Proportional to 141,448.78, 195,144.07 and 80,987.11

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Solution

The fourth proportional to 141,448.78, 195,144.07 and 80,987.11 is: 111,730.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,448.78 : 195,144.07 = 80,987.11 : x
  2. Step 2: Convert to fraction form
    141,448.78/195,144.07 = 80,987.11/x
  3. Step 3: Cross multiply
    141,448.78x = 195,144.07 × 80,987.11
  4. Step 4: Simplify right side
    141,448.78x = 15,804,154,262.94
  5. Step 5: Solve for x
    x = 15,804,154,262.94/141,448.78
  6. Step 6: Final answer
    x = 111,730.58

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1.5x scale

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.