Home / 115,933.38-160,806.57-112,860.65

Finding the Fourth Proportional to 115,933.38, 160,806.57 and 112,860.65

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Solution

The fourth proportional to 115,933.38, 160,806.57 and 112,860.65 is: 156,544.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,933.38 : 160,806.57 = 112,860.65 : x
  2. Step 2: Convert to fraction form
    115,933.38/160,806.57 = 112,860.65/x
  3. Step 3: Cross multiply
    115,933.38x = 160,806.57 × 112,860.65
  4. Step 4: Simplify right side
    115,933.38x = 18,148,733,210.44
  5. Step 5: Solve for x
    x = 18,148,733,210.44/115,933.38
  6. Step 6: Final answer
    x = 156,544.50

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.