Home / 209,046.90-288,604.42-137,634.50

Finding the Fourth Proportional to 209,046.90, 288,604.42 and 137,634.50

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Solution

The fourth proportional to 209,046.90, 288,604.42 and 137,634.50 is: 190,014.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,046.90 : 288,604.42 = 137,634.50 : x
  2. Step 2: Convert to fraction form
    209,046.90/288,604.42 = 137,634.50/x
  3. Step 3: Cross multiply
    209,046.90x = 288,604.42 × 137,634.50
  4. Step 4: Simplify right side
    209,046.90x = 39,721,925,044.49
  5. Step 5: Solve for x
    x = 39,721,925,044.49/209,046.90
  6. Step 6: Final answer
    x = 190,014.42

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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.