Home / 209,604.14-289,204.53-118,939.58

Finding the Fourth Proportional to 209,604.14, 289,204.53 and 118,939.58

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Solution

The fourth proportional to 209,604.14, 289,204.53 and 118,939.58 is: 164,108.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,604.14 : 289,204.53 = 118,939.58 : x
  2. Step 2: Convert to fraction form
    209,604.14/289,204.53 = 118,939.58/x
  3. Step 3: Cross multiply
    209,604.14x = 289,204.53 × 118,939.58
  4. Step 4: Simplify right side
    209,604.14x = 34,397,865,332.30
  5. Step 5: Solve for x
    x = 34,397,865,332.30/209,604.14
  6. Step 6: Final answer
    x = 164,108.71

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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.