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Finding the Fourth Proportional to 188,166.60, 259,665.56 and 102,125.72

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Solution

The fourth proportional to 188,166.60, 259,665.56 and 102,125.72 is: 140,931.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,166.60 : 259,665.56 = 102,125.72 : x
  2. Step 2: Convert to fraction form
    188,166.60/259,665.56 = 102,125.72/x
  3. Step 3: Cross multiply
    188,166.60x = 259,665.56 × 102,125.72
  4. Step 4: Simplify right side
    188,166.60x = 26,518,532,274.20
  5. Step 5: Solve for x
    x = 26,518,532,274.20/188,166.60
  6. Step 6: Final answer
    x = 140,931.13

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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.