Home / 188,108.48-259,574.88-103,225.28

Finding the Fourth Proportional to 188,108.48, 259,574.88 and 103,225.28

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Solution

The fourth proportional to 188,108.48, 259,574.88 and 103,225.28 is: 142,442.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,108.48 : 259,574.88 = 103,225.28 : x
  2. Step 2: Convert to fraction form
    188,108.48/259,574.88 = 103,225.28/x
  3. Step 3: Cross multiply
    188,108.48x = 259,574.88 × 103,225.28
  4. Step 4: Simplify right side
    188,108.48x = 26,794,689,668.97
  5. Step 5: Solve for x
    x = 26,794,689,668.97/188,108.48
  6. Step 6: Final answer
    x = 142,442.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.