Home / 139,508.11-209,139.04-50,746.08

Finding the Fourth Proportional to 139,508.11, 209,139.04 and 50,746.08

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Solution

The fourth proportional to 139,508.11, 209,139.04 and 50,746.08 is: 76,074.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,508.11 : 209,139.04 = 50,746.08 : x
  2. Step 2: Convert to fraction form
    139,508.11/209,139.04 = 50,746.08/x
  3. Step 3: Cross multiply
    139,508.11x = 209,139.04 × 50,746.08
  4. Step 4: Simplify right side
    139,508.11x = 10,612,986,454.96
  5. Step 5: Solve for x
    x = 10,612,986,454.96/139,508.11
  6. Step 6: Final answer
    x = 76,074.33

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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.