Home / 188,686.14-260,420.31-113,239.50

Finding the Fourth Proportional to 188,686.14, 260,420.31 and 113,239.50

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Solution

The fourth proportional to 188,686.14, 260,420.31 and 113,239.50 is: 156,290.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,686.14 : 260,420.31 = 113,239.50 : x
  2. Step 2: Convert to fraction form
    188,686.14/260,420.31 = 113,239.50/x
  3. Step 3: Cross multiply
    188,686.14x = 260,420.31 × 113,239.50
  4. Step 4: Simplify right side
    188,686.14x = 29,489,865,694.25
  5. Step 5: Solve for x
    x = 29,489,865,694.25/188,686.14
  6. Step 6: Final answer
    x = 156,290.58

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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.