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Finding the Fourth Proportional to 172,124.67, 258,230.81 and 101,107.36

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Solution

The fourth proportional to 172,124.67, 258,230.81 and 101,107.36 is: 151,686.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,124.67 : 258,230.81 = 101,107.36 : x
  2. Step 2: Convert to fraction form
    172,124.67/258,230.81 = 101,107.36/x
  3. Step 3: Cross multiply
    172,124.67x = 258,230.81 × 101,107.36
  4. Step 4: Simplify right side
    172,124.67x = 26,109,036,487.23
  5. Step 5: Solve for x
    x = 26,109,036,487.23/172,124.67
  6. Step 6: Final answer
    x = 151,686.78

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1.5x scale

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.