Home / 141,723.86-195,587.79-78,061.64

Finding the Fourth Proportional to 141,723.86, 195,587.79 and 78,061.64

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Solution

The fourth proportional to 141,723.86, 195,587.79 and 78,061.64 is: 107,729.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,723.86 : 195,587.79 = 78,061.64 : x
  2. Step 2: Convert to fraction form
    141,723.86/195,587.79 = 78,061.64/x
  3. Step 3: Cross multiply
    141,723.86x = 195,587.79 × 78,061.64
  4. Step 4: Simplify right side
    141,723.86x = 15,267,903,651.38
  5. Step 5: Solve for x
    x = 15,267,903,651.38/141,723.86
  6. Step 6: Final answer
    x = 107,729.95

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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.