Home / 209,104.79-288,563.85-113,610.65

Finding the Fourth Proportional to 209,104.79, 288,563.85 and 113,610.65

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Solution

The fourth proportional to 209,104.79, 288,563.85 and 113,610.65 is: 156,782.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,104.79 : 288,563.85 = 113,610.65 : x
  2. Step 2: Convert to fraction form
    209,104.79/288,563.85 = 113,610.65/x
  3. Step 3: Cross multiply
    209,104.79x = 288,563.85 × 113,610.65
  4. Step 4: Simplify right side
    209,104.79x = 32,783,925,122.18
  5. Step 5: Solve for x
    x = 32,783,925,122.18/209,104.79
  6. Step 6: Final answer
    x = 156,782.28

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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.