Home / 209,362.80-288,932.46-113,867.58

Finding the Fourth Proportional to 209,362.80, 288,932.46 and 113,867.58

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Solution

The fourth proportional to 209,362.80, 288,932.46 and 113,867.58 is: 157,143.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,362.80 : 288,932.46 = 113,867.58 : x
  2. Step 2: Convert to fraction form
    209,362.80/288,932.46 = 113,867.58/x
  3. Step 3: Cross multiply
    209,362.80x = 288,932.46 × 113,867.58
  4. Step 4: Simplify right side
    209,362.80x = 32,900,040,003.65
  5. Step 5: Solve for x
    x = 32,900,040,003.65/209,362.80
  6. Step 6: Final answer
    x = 157,143.68

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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.