Home / 209,219.30-288,723.67-113,726

Finding the Fourth Proportional to 209,219.30, 288,723.67 and 113,726

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Solution

The fourth proportional to 209,219.30, 288,723.67 and 113,726 is: 156,942.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,219.30 : 288,723.67 = 113,726 : x
  2. Step 2: Convert to fraction form
    209,219.30/288,723.67 = 113,726/x
  3. Step 3: Cross multiply
    209,219.30x = 288,723.67 × 113,726
  4. Step 4: Simplify right side
    209,219.30x = 32,835,388,094.42
  5. Step 5: Solve for x
    x = 32,835,388,094.42/209,219.30
  6. Step 6: Final answer
    x = 156,942.44

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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.