Home / 172,486.18-258,690.39-47,836.90

Finding the Fourth Proportional to 172,486.18, 258,690.39 and 47,836.90

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Solution

The fourth proportional to 172,486.18, 258,690.39 and 47,836.90 is: 71,744.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,486.18 : 258,690.39 = 47,836.90 : x
  2. Step 2: Convert to fraction form
    172,486.18/258,690.39 = 47,836.90/x
  3. Step 3: Cross multiply
    172,486.18x = 258,690.39 × 47,836.90
  4. Step 4: Simplify right side
    172,486.18x = 12,374,946,317.39
  5. Step 5: Solve for x
    x = 12,374,946,317.39/172,486.18
  6. Step 6: Final answer
    x = 71,744.57

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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.