Home / 139,848.22-209,778.09-73,251.10

Finding the Fourth Proportional to 139,848.22, 209,778.09 and 73,251.10

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Solution

The fourth proportional to 139,848.22, 209,778.09 and 73,251.10 is: 109,879.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,848.22 : 209,778.09 = 73,251.10 : x
  2. Step 2: Convert to fraction form
    139,848.22/209,778.09 = 73,251.10/x
  3. Step 3: Cross multiply
    139,848.22x = 209,778.09 × 73,251.10
  4. Step 4: Simplify right side
    139,848.22x = 15,366,475,848.40
  5. Step 5: Solve for x
    x = 15,366,475,848.40/139,848.22
  6. Step 6: Final answer
    x = 109,879.67

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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.