Home / 141,966.25-195,913.04-81,540.79

Finding the Fourth Proportional to 141,966.25, 195,913.04 and 81,540.79

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Solution

The fourth proportional to 141,966.25, 195,913.04 and 81,540.79 is: 112,526.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,966.25 : 195,913.04 = 81,540.79 : x
  2. Step 2: Convert to fraction form
    141,966.25/195,913.04 = 81,540.79/x
  3. Step 3: Cross multiply
    141,966.25x = 195,913.04 × 81,540.79
  4. Step 4: Simplify right side
    141,966.25x = 15,974,903,155.42
  5. Step 5: Solve for x
    x = 15,974,903,155.42/141,966.25
  6. Step 6: Final answer
    x = 112,526.06

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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.