Home / 202,022.52-278,793.02-111,381.99

Finding the Fourth Proportional to 202,022.52, 278,793.02 and 111,381.99

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Solution

The fourth proportional to 202,022.52, 278,793.02 and 111,381.99 is: 153,708.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,022.52 : 278,793.02 = 111,381.99 : x
  2. Step 2: Convert to fraction form
    202,022.52/278,793.02 = 111,381.99/x
  3. Step 3: Cross multiply
    202,022.52x = 278,793.02 × 111,381.99
  4. Step 4: Simplify right side
    202,022.52x = 31,052,520,808.80
  5. Step 5: Solve for x
    x = 31,052,520,808.80/202,022.52
  6. Step 6: Final answer
    x = 153,708.21

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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.