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Finding the Fourth Proportional to 172,680.74, 259,062.58 and 66,062.95

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Solution

The fourth proportional to 172,680.74, 259,062.58 and 66,062.95 is: 99,110.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,680.74 : 259,062.58 = 66,062.95 : x
  2. Step 2: Convert to fraction form
    172,680.74/259,062.58 = 66,062.95/x
  3. Step 3: Cross multiply
    172,680.74x = 259,062.58 × 66,062.95
  4. Step 4: Simplify right side
    172,680.74x = 17,114,438,269.41
  5. Step 5: Solve for x
    x = 17,114,438,269.41/172,680.74
  6. Step 6: Final answer
    x = 99,110.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.