Home / 141,873.78-195,750.45-90,172.02

Finding the Fourth Proportional to 141,873.78, 195,750.45 and 90,172.02

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Solution

The fourth proportional to 141,873.78, 195,750.45 and 90,172.02 is: 124,414.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,873.78 : 195,750.45 = 90,172.02 : x
  2. Step 2: Convert to fraction form
    141,873.78/195,750.45 = 90,172.02/x
  3. Step 3: Cross multiply
    141,873.78x = 195,750.45 × 90,172.02
  4. Step 4: Simplify right side
    141,873.78x = 17,651,213,492.41
  5. Step 5: Solve for x
    x = 17,651,213,492.41/141,873.78
  6. Step 6: Final answer
    x = 124,414.91

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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.