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Finding the Fourth Proportional to 188,210.76, 259,729.76 and 102,171.48

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Solution

The fourth proportional to 188,210.76, 259,729.76 and 102,171.48 is: 140,996.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,210.76 : 259,729.76 = 102,171.48 : x
  2. Step 2: Convert to fraction form
    188,210.76/259,729.76 = 102,171.48/x
  3. Step 3: Cross multiply
    188,210.76x = 259,729.76 × 102,171.48
  4. Step 4: Simplify right side
    188,210.76x = 26,536,973,979.24
  5. Step 5: Solve for x
    x = 26,536,973,979.24/188,210.76
  6. Step 6: Final answer
    x = 140,996.05

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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.