Home / 141,631.27-195,439.23-81,188.06

Finding the Fourth Proportional to 141,631.27, 195,439.23 and 81,188.06

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Solution

The fourth proportional to 141,631.27, 195,439.23 and 81,188.06 is: 112,032.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,631.27 : 195,439.23 = 81,188.06 : x
  2. Step 2: Convert to fraction form
    141,631.27/195,439.23 = 81,188.06/x
  3. Step 3: Cross multiply
    141,631.27x = 195,439.23 × 81,188.06
  4. Step 4: Simplify right side
    141,631.27x = 15,867,330,954.40
  5. Step 5: Solve for x
    x = 15,867,330,954.40/141,631.27
  6. Step 6: Final answer
    x = 112,032.68

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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.