Home / 143,620.03-215,461.05-43,777.54

Finding the Fourth Proportional to 143,620.03, 215,461.05 and 43,777.54

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Solution

The fourth proportional to 143,620.03, 215,461.05 and 43,777.54 is: 65,675.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,620.03 : 215,461.05 = 43,777.54 : x
  2. Step 2: Convert to fraction form
    143,620.03/215,461.05 = 43,777.54/x
  3. Step 3: Cross multiply
    143,620.03x = 215,461.05 × 43,777.54
  4. Step 4: Simplify right side
    143,620.03x = 9,432,354,734.82
  5. Step 5: Solve for x
    x = 9,432,354,734.82/143,620.03
  6. Step 6: Final answer
    x = 65,675.76

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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.