Home / 145,650.85-218,507.48-82,500.82

Finding the Fourth Proportional to 145,650.85, 218,507.48 and 82,500.82

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Solution

The fourth proportional to 145,650.85, 218,507.48 and 82,500.82 is: 123,768.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,650.85 : 218,507.48 = 82,500.82 : x
  2. Step 2: Convert to fraction form
    145,650.85/218,507.48 = 82,500.82/x
  3. Step 3: Cross multiply
    145,650.85x = 218,507.48 × 82,500.82
  4. Step 4: Simplify right side
    145,650.85x = 18,027,046,276.13
  5. Step 5: Solve for x
    x = 18,027,046,276.13/145,650.85
  6. Step 6: Final answer
    x = 123,768.91

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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.