Home / 141,718.86-195,580.89-78,056.64

Finding the Fourth Proportional to 141,718.86, 195,580.89 and 78,056.64

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Solution

The fourth proportional to 141,718.86, 195,580.89 and 78,056.64 is: 107,723.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,718.86 : 195,580.89 = 78,056.64 : x
  2. Step 2: Convert to fraction form
    141,718.86/195,580.89 = 78,056.64/x
  3. Step 3: Cross multiply
    141,718.86x = 195,580.89 × 78,056.64
  4. Step 4: Simplify right side
    141,718.86x = 15,266,387,121.61
  5. Step 5: Solve for x
    x = 15,266,387,121.61/141,718.86
  6. Step 6: Final answer
    x = 107,723.04

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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.