Home / 141,834.26-195,731.70-78,170.60

Finding the Fourth Proportional to 141,834.26, 195,731.70 and 78,170.60

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Solution

The fourth proportional to 141,834.26, 195,731.70 and 78,170.60 is: 107,875.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,834.26 : 195,731.70 = 78,170.60 : x
  2. Step 2: Convert to fraction form
    141,834.26/195,731.70 = 78,170.60/x
  3. Step 3: Cross multiply
    141,834.26x = 195,731.70 × 78,170.60
  4. Step 4: Simplify right side
    141,834.26x = 15,300,464,428.02
  5. Step 5: Solve for x
    x = 15,300,464,428.02/141,834.26
  6. Step 6: Final answer
    x = 107,875.66

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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.