Home / 139,749.03-209,217.06-125,323.20

Finding the Fourth Proportional to 139,749.03, 209,217.06 and 125,323.20

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Solution

The fourth proportional to 139,749.03, 209,217.06 and 125,323.20 is: 187,620.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,749.03 : 209,217.06 = 125,323.20 : x
  2. Step 2: Convert to fraction form
    139,749.03/209,217.06 = 125,323.20/x
  3. Step 3: Cross multiply
    139,749.03x = 209,217.06 × 125,323.20
  4. Step 4: Simplify right side
    139,749.03x = 26,219,751,453.79
  5. Step 5: Solve for x
    x = 26,219,751,453.79/139,749.03
  6. Step 6: Final answer
    x = 187,620.28

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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.