Home / 205,869.86-284,066.52-129,334.79

Finding the Fourth Proportional to 205,869.86, 284,066.52 and 129,334.79

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Solution

The fourth proportional to 205,869.86, 284,066.52 and 129,334.79 is: 178,460.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,869.86 : 284,066.52 = 129,334.79 : x
  2. Step 2: Convert to fraction form
    205,869.86/284,066.52 = 129,334.79/x
  3. Step 3: Cross multiply
    205,869.86x = 284,066.52 × 129,334.79
  4. Step 4: Simplify right side
    205,869.86x = 36,739,682,337.52
  5. Step 5: Solve for x
    x = 36,739,682,337.52/205,869.86
  6. Step 6: Final answer
    x = 178,460.71

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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.