Home / 141,835.86-195,734.38-78,173.65

Finding the Fourth Proportional to 141,835.86, 195,734.38 and 78,173.65

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Solution

The fourth proportional to 141,835.86, 195,734.38 and 78,173.65 is: 107,880.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,835.86 : 195,734.38 = 78,173.65 : x
  2. Step 2: Convert to fraction form
    141,835.86/195,734.38 = 78,173.65/x
  3. Step 3: Cross multiply
    141,835.86x = 195,734.38 × 78,173.65
  4. Step 4: Simplify right side
    141,835.86x = 15,301,270,915.09
  5. Step 5: Solve for x
    x = 15,301,270,915.09/141,835.86
  6. Step 6: Final answer
    x = 107,880.13

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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.