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Finding the Fourth Proportional to 172,171.21, 258,108.90 and 59,836.83

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Solution

The fourth proportional to 172,171.21, 258,108.90 and 59,836.83 is: 89,703.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,171.21 : 258,108.90 = 59,836.83 : x
  2. Step 2: Convert to fraction form
    172,171.21/258,108.90 = 59,836.83/x
  3. Step 3: Cross multiply
    172,171.21x = 258,108.90 × 59,836.83
  4. Step 4: Simplify right side
    172,171.21x = 15,444,418,370.79
  5. Step 5: Solve for x
    x = 15,444,418,370.79/172,171.21
  6. Step 6: Final answer
    x = 89,703.84

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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.