Home / 135,085.20-202,503.90-51,916.56

Finding the Fourth Proportional to 135,085.20, 202,503.90 and 51,916.56

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Solution

The fourth proportional to 135,085.20, 202,503.90 and 51,916.56 is: 77,827.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,085.20 : 202,503.90 = 51,916.56 : x
  2. Step 2: Convert to fraction form
    135,085.20/202,503.90 = 51,916.56/x
  3. Step 3: Cross multiply
    135,085.20x = 202,503.90 × 51,916.56
  4. Step 4: Simplify right side
    135,085.20x = 10,513,305,874.58
  5. Step 5: Solve for x
    x = 10,513,305,874.58/135,085.20
  6. Step 6: Final answer
    x = 77,827.22

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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.