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Finding the Fourth Proportional to 188,172.72, 259,612.56 and 107,542.08

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Solution

The fourth proportional to 188,172.72, 259,612.56 and 107,542.08 is: 148,370.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,172.72 : 259,612.56 = 107,542.08 : x
  2. Step 2: Convert to fraction form
    188,172.72/259,612.56 = 107,542.08/x
  3. Step 3: Cross multiply
    188,172.72x = 259,612.56 × 107,542.08
  4. Step 4: Simplify right side
    188,172.72x = 27,919,274,696.52
  5. Step 5: Solve for x
    x = 27,919,274,696.52/188,172.72
  6. Step 6: Final answer
    x = 148,370.47

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1.5x scale

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.