Home / 143,971.26-215,645.28-104,441.28

Finding the Fourth Proportional to 143,971.26, 215,645.28 and 104,441.28

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Solution

The fourth proportional to 143,971.26, 215,645.28 and 104,441.28 is: 156,435.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,971.26 : 215,645.28 = 104,441.28 : x
  2. Step 2: Convert to fraction form
    143,971.26/215,645.28 = 104,441.28/x
  3. Step 3: Cross multiply
    143,971.26x = 215,645.28 × 104,441.28
  4. Step 4: Simplify right side
    143,971.26x = 22,522,269,069.16
  5. Step 5: Solve for x
    x = 22,522,269,069.16/143,971.26
  6. Step 6: Final answer
    x = 156,435.87

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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.