Home / 139,680.23-209,519.21-92,506.44

Finding the Fourth Proportional to 139,680.23, 209,519.21 and 92,506.44

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Solution

The fourth proportional to 139,680.23, 209,519.21 and 92,506.44 is: 138,758.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,680.23 : 209,519.21 = 92,506.44 : x
  2. Step 2: Convert to fraction form
    139,680.23/209,519.21 = 92,506.44/x
  3. Step 3: Cross multiply
    139,680.23x = 209,519.21 × 92,506.44
  4. Step 4: Simplify right side
    139,680.23x = 19,381,875,766.18
  5. Step 5: Solve for x
    x = 19,381,875,766.18/139,680.23
  6. Step 6: Final answer
    x = 138,758.91

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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.