Home / 141,912.16-195,851.92-81,490.72

Finding the Fourth Proportional to 141,912.16, 195,851.92 and 81,490.72

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Solution

The fourth proportional to 141,912.16, 195,851.92 and 81,490.72 is: 112,464.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,912.16 : 195,851.92 = 81,490.72 : x
  2. Step 2: Convert to fraction form
    141,912.16/195,851.92 = 81,490.72/x
  3. Step 3: Cross multiply
    141,912.16x = 195,851.92 × 81,490.72
  4. Step 4: Simplify right side
    141,912.16x = 15,960,113,974.18
  5. Step 5: Solve for x
    x = 15,960,113,974.18/141,912.16
  6. Step 6: Final answer
    x = 112,464.74

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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.