Home / 103,345.14-155,019.26-35,879.31

Finding the Fourth Proportional to 103,345.14, 155,019.26 and 35,879.31

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Solution

The fourth proportional to 103,345.14, 155,019.26 and 35,879.31 is: 53,819.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,345.14 : 155,019.26 = 35,879.31 : x
  2. Step 2: Convert to fraction form
    103,345.14/155,019.26 = 35,879.31/x
  3. Step 3: Cross multiply
    103,345.14x = 155,019.26 × 35,879.31
  4. Step 4: Simplify right side
    103,345.14x = 5,561,984,398.60
  5. Step 5: Solve for x
    x = 5,561,984,398.60/103,345.14
  6. Step 6: Final answer
    x = 53,819.51

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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.