Home / 141,364-195,084.56-80,934.40

Finding the Fourth Proportional to 141,364, 195,084.56 and 80,934.40

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Solution

The fourth proportional to 141,364, 195,084.56 and 80,934.40 is: 111,690.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,364 : 195,084.56 = 80,934.40 : x
  2. Step 2: Convert to fraction form
    141,364/195,084.56 = 80,934.40/x
  3. Step 3: Cross multiply
    141,364x = 195,084.56 × 80,934.40
  4. Step 4: Simplify right side
    141,364x = 15,789,051,812.86
  5. Step 5: Solve for x
    x = 15,789,051,812.86/141,364
  6. Step 6: Final answer
    x = 111,690.75

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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.