Home / 141,334.86-195,041.18-76,803.78

Finding the Fourth Proportional to 141,334.86, 195,041.18 and 76,803.78

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Solution

The fourth proportional to 141,334.86, 195,041.18 and 76,803.78 is: 105,988.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,334.86 : 195,041.18 = 76,803.78 : x
  2. Step 2: Convert to fraction form
    141,334.86/195,041.18 = 76,803.78/x
  3. Step 3: Cross multiply
    141,334.86x = 195,041.18 × 76,803.78
  4. Step 4: Simplify right side
    141,334.86x = 14,979,899,879.66
  5. Step 5: Solve for x
    x = 14,979,899,879.66/141,334.86
  6. Step 6: Final answer
    x = 105,988.71

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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.