Home / 208,518.20-312,744.90-58,743.80

Finding the Fourth Proportional to 208,518.20, 312,744.90 and 58,743.80

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Solution

The fourth proportional to 208,518.20, 312,744.90 and 58,743.80 is: 88,106.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,518.20 : 312,744.90 = 58,743.80 : x
  2. Step 2: Convert to fraction form
    208,518.20/312,744.90 = 58,743.80/x
  3. Step 3: Cross multiply
    208,518.20x = 312,744.90 × 58,743.80
  4. Step 4: Simplify right side
    208,518.20x = 18,371,823,856.62
  5. Step 5: Solve for x
    x = 18,371,823,856.62/208,518.20
  6. Step 6: Final answer
    x = 88,106.57

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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.