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Finding the Fourth Proportional to 171,849.70, 258,005.40 and 100,845.10

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Solution

The fourth proportional to 171,849.70, 258,005.40 and 100,845.10 is: 151,403.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,849.70 : 258,005.40 = 100,845.10 : x
  2. Step 2: Convert to fraction form
    171,849.70/258,005.40 = 100,845.10/x
  3. Step 3: Cross multiply
    171,849.70x = 258,005.40 × 100,845.10
  4. Step 4: Simplify right side
    171,849.70x = 26,018,580,363.54
  5. Step 5: Solve for x
    x = 26,018,580,363.54/171,849.70
  6. Step 6: Final answer
    x = 151,403.12

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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.