Home / 202,086.18-278,877.24-111,445.92

Finding the Fourth Proportional to 202,086.18, 278,877.24 and 111,445.92

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Solution

The fourth proportional to 202,086.18, 278,877.24 and 111,445.92 is: 153,794.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,086.18 : 278,877.24 = 111,445.92 : x
  2. Step 2: Convert to fraction form
    202,086.18/278,877.24 = 111,445.92/x
  3. Step 3: Cross multiply
    202,086.18x = 278,877.24 × 111,445.92
  4. Step 4: Simplify right side
    202,086.18x = 31,079,730,578.86
  5. Step 5: Solve for x
    x = 31,079,730,578.86/202,086.18
  6. Step 6: Final answer
    x = 153,794.44

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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.