Home / 209,204.78-288,705.54-113,711.48

Finding the Fourth Proportional to 209,204.78, 288,705.54 and 113,711.48

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Solution

The fourth proportional to 209,204.78, 288,705.54 and 113,711.48 is: 156,923.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,204.78 : 288,705.54 = 113,711.48 : x
  2. Step 2: Convert to fraction form
    209,204.78/288,705.54 = 113,711.48/x
  3. Step 3: Cross multiply
    209,204.78x = 288,705.54 × 113,711.48
  4. Step 4: Simplify right side
    209,204.78x = 32,829,134,237.60
  5. Step 5: Solve for x
    x = 32,829,134,237.60/209,204.78
  6. Step 6: Final answer
    x = 156,923.44

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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.