Home / 143,820.53-215,761.93-55,074.03

Finding the Fourth Proportional to 143,820.53, 215,761.93 and 55,074.03

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Solution

The fourth proportional to 143,820.53, 215,761.93 and 55,074.03 is: 82,622.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,820.53 : 215,761.93 = 55,074.03 : x
  2. Step 2: Convert to fraction form
    143,820.53/215,761.93 = 55,074.03/x
  3. Step 3: Cross multiply
    143,820.53x = 215,761.93 × 55,074.03
  4. Step 4: Simplify right side
    143,820.53x = 11,882,879,677.10
  5. Step 5: Solve for x
    x = 11,882,879,677.10/143,820.53
  6. Step 6: Final answer
    x = 82,622.98

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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.