Home / 139,880.22-209,882.35-73,304.52

Finding the Fourth Proportional to 139,880.22, 209,882.35 and 73,304.52

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Solution

The fourth proportional to 139,880.22, 209,882.35 and 73,304.52 is: 109,989.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,880.22 : 209,882.35 = 73,304.52 : x
  2. Step 2: Convert to fraction form
    139,880.22/209,882.35 = 73,304.52/x
  3. Step 3: Cross multiply
    139,880.22x = 209,882.35 × 73,304.52
  4. Step 4: Simplify right side
    139,880.22x = 15,385,324,923.22
  5. Step 5: Solve for x
    x = 15,385,324,923.22/139,880.22
  6. Step 6: Final answer
    x = 109,989.28

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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.