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Finding the Fourth Proportional to 188,179.68, 259,694.64 and 103,303.20

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Solution

The fourth proportional to 188,179.68, 259,694.64 and 103,303.20 is: 142,562.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,179.68 : 259,694.64 = 103,303.20 : x
  2. Step 2: Convert to fraction form
    188,179.68/259,694.64 = 103,303.20/x
  3. Step 3: Cross multiply
    188,179.68x = 259,694.64 × 103,303.20
  4. Step 4: Simplify right side
    188,179.68x = 26,827,287,334.85
  5. Step 5: Solve for x
    x = 26,827,287,334.85/188,179.68
  6. Step 6: Final answer
    x = 142,562.08

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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.