Home / 188,531.18-260,179.71-103,654.70

Finding the Fourth Proportional to 188,531.18, 260,179.71 and 103,654.70

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Solution

The fourth proportional to 188,531.18, 260,179.71 and 103,654.70 is: 143,047.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,531.18 : 260,179.71 = 103,654.70 : x
  2. Step 2: Convert to fraction form
    188,531.18/260,179.71 = 103,654.70/x
  3. Step 3: Cross multiply
    188,531.18x = 260,179.71 × 103,654.70
  4. Step 4: Simplify right side
    188,531.18x = 26,968,849,786.14
  5. Step 5: Solve for x
    x = 26,968,849,786.14/188,531.18
  6. Step 6: Final answer
    x = 143,047.16

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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.