Home / 209,357.04-313,639.98-123,712.42

Finding the Fourth Proportional to 209,357.04, 313,639.98 and 123,712.42

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Solution

The fourth proportional to 209,357.04, 313,639.98 and 123,712.42 is: 185,334.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,357.04 : 313,639.98 = 123,712.42 : x
  2. Step 2: Convert to fraction form
    209,357.04/313,639.98 = 123,712.42/x
  3. Step 3: Cross multiply
    209,357.04x = 313,639.98 × 123,712.42
  4. Step 4: Simplify right side
    209,357.04x = 38,801,160,934.55
  5. Step 5: Solve for x
    x = 38,801,160,934.55/209,357.04
  6. Step 6: Final answer
    x = 185,334.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.