Home / 202,023.95-278,780.20-111,374.96

Finding the Fourth Proportional to 202,023.95, 278,780.20 and 111,374.96

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Solution

The fourth proportional to 202,023.95, 278,780.20 and 111,374.96 is: 153,690.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,023.95 : 278,780.20 = 111,374.96 : x
  2. Step 2: Convert to fraction form
    202,023.95/278,780.20 = 111,374.96/x
  3. Step 3: Cross multiply
    202,023.95x = 278,780.20 × 111,374.96
  4. Step 4: Simplify right side
    202,023.95x = 31,049,131,951.45
  5. Step 5: Solve for x
    x = 31,049,131,951.45/202,023.95
  6. Step 6: Final answer
    x = 153,690.36

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1.5x scale

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.