Home / 210,583.57-315,954.94-126,402.41

Finding the Fourth Proportional to 210,583.57, 315,954.94 and 126,402.41

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Solution

The fourth proportional to 210,583.57, 315,954.94 and 126,402.41 is: 189,651.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,583.57 : 315,954.94 = 126,402.41 : x
  2. Step 2: Convert to fraction form
    210,583.57/315,954.94 = 126,402.41/x
  3. Step 3: Cross multiply
    210,583.57x = 315,954.94 × 126,402.41
  4. Step 4: Simplify right side
    210,583.57x = 39,937,466,311.73
  5. Step 5: Solve for x
    x = 39,937,466,311.73/210,583.57
  6. Step 6: Final answer
    x = 189,651.39

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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.