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Finding the Fourth Proportional to 188,282.79, 259,834.77 and 103,401.68

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Solution

The fourth proportional to 188,282.79, 259,834.77 and 103,401.68 is: 142,696.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,282.79 : 259,834.77 = 103,401.68 : x
  2. Step 2: Convert to fraction form
    188,282.79/259,834.77 = 103,401.68/x
  3. Step 3: Cross multiply
    188,282.79x = 259,834.77 × 103,401.68
  4. Step 4: Simplify right side
    188,282.79x = 26,867,350,441.24
  5. Step 5: Solve for x
    x = 26,867,350,441.24/188,282.79
  6. Step 6: Final answer
    x = 142,696.79

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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.