Home / 188,272.25-259,817.53-103,391.14

Finding the Fourth Proportional to 188,272.25, 259,817.53 and 103,391.14

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Solution

The fourth proportional to 188,272.25, 259,817.53 and 103,391.14 is: 142,680.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,272.25 : 259,817.53 = 103,391.14 : x
  2. Step 2: Convert to fraction form
    188,272.25/259,817.53 = 103,391.14/x
  3. Step 3: Cross multiply
    188,272.25x = 259,817.53 × 103,391.14
  4. Step 4: Simplify right side
    188,272.25x = 26,862,829,319.60
  5. Step 5: Solve for x
    x = 26,862,829,319.60/188,272.25
  6. Step 6: Final answer
    x = 142,680.77

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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.