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Finding the Fourth Proportional to 188,085.78, 259,557.60 and 102,044.76

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Solution

The fourth proportional to 188,085.78, 259,557.60 and 102,044.76 is: 140,821.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,085.78 : 259,557.60 = 102,044.76 : x
  2. Step 2: Convert to fraction form
    188,085.78/259,557.60 = 102,044.76/x
  3. Step 3: Cross multiply
    188,085.78x = 259,557.60 × 102,044.76
  4. Step 4: Simplify right side
    188,085.78x = 26,486,492,998.18
  5. Step 5: Solve for x
    x = 26,486,492,998.18/188,085.78
  6. Step 6: Final answer
    x = 140,821.35

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1.5x scale

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.