Home / 141,834.04-195,728.66-78,177.80

Finding the Fourth Proportional to 141,834.04, 195,728.66 and 78,177.80

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Solution

The fourth proportional to 141,834.04, 195,728.66 and 78,177.80 is: 107,884.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,834.04 : 195,728.66 = 78,177.80 : x
  2. Step 2: Convert to fraction form
    141,834.04/195,728.66 = 78,177.80/x
  3. Step 3: Cross multiply
    141,834.04x = 195,728.66 × 78,177.80
  4. Step 4: Simplify right side
    141,834.04x = 15,301,636,035.75
  5. Step 5: Solve for x
    x = 15,301,636,035.75/141,834.04
  6. Step 6: Final answer
    x = 107,884.09

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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.