Home / 143,895.10-215,719.58-55,212.26

Finding the Fourth Proportional to 143,895.10, 215,719.58 and 55,212.26

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Solution

The fourth proportional to 143,895.10, 215,719.58 and 55,212.26 is: 82,771.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,895.10 : 215,719.58 = 55,212.26 : x
  2. Step 2: Convert to fraction form
    143,895.10/215,719.58 = 55,212.26/x
  3. Step 3: Cross multiply
    143,895.10x = 215,719.58 × 55,212.26
  4. Step 4: Simplify right side
    143,895.10x = 11,910,365,538.05
  5. Step 5: Solve for x
    x = 11,910,365,538.05/143,895.10
  6. Step 6: Final answer
    x = 82,771.17

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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.