Home / 143,619.03-215,459.55-43,776.54

Finding the Fourth Proportional to 143,619.03, 215,459.55 and 43,776.54

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Solution

The fourth proportional to 143,619.03, 215,459.55 and 43,776.54 is: 65,674.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,619.03 : 215,459.55 = 43,776.54 : x
  2. Step 2: Convert to fraction form
    143,619.03/215,459.55 = 43,776.54/x
  3. Step 3: Cross multiply
    143,619.03x = 215,459.55 × 43,776.54
  4. Step 4: Simplify right side
    143,619.03x = 9,432,073,608.96
  5. Step 5: Solve for x
    x = 9,432,073,608.96/143,619.03
  6. Step 6: Final answer
    x = 65,674.26

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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.