Home / 143,916.22-215,593.83-87,616.72

Finding the Fourth Proportional to 143,916.22, 215,593.83 and 87,616.72

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Solution

The fourth proportional to 143,916.22, 215,593.83 and 87,616.72 is: 131,254.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,916.22 : 215,593.83 = 87,616.72 : x
  2. Step 2: Convert to fraction form
    143,916.22/215,593.83 = 87,616.72/x
  3. Step 3: Cross multiply
    143,916.22x = 215,593.83 × 87,616.72
  4. Step 4: Simplify right side
    143,916.22x = 18,889,624,236.84
  5. Step 5: Solve for x
    x = 18,889,624,236.84/143,916.22
  6. Step 6: Final answer
    x = 131,254.31

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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.