Home / 169,023.03-253,542.75-139,386.75

Finding the Fourth Proportional to 169,023.03, 253,542.75 and 139,386.75

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Solution

The fourth proportional to 169,023.03, 253,542.75 and 139,386.75 is: 209,086.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,023.03 : 253,542.75 = 139,386.75 : x
  2. Step 2: Convert to fraction form
    169,023.03/253,542.75 = 139,386.75/x
  3. Step 3: Cross multiply
    169,023.03x = 253,542.75 × 139,386.75
  4. Step 4: Simplify right side
    169,023.03x = 35,340,499,908.56
  5. Step 5: Solve for x
    x = 35,340,499,908.56/169,023.03
  6. Step 6: Final answer
    x = 209,086.89

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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.