Home / 147,027.30-220,542.65-139,856.66

Finding the Fourth Proportional to 147,027.30, 220,542.65 and 139,856.66

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Solution

The fourth proportional to 147,027.30, 220,542.65 and 139,856.66 is: 209,786.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,027.30 : 220,542.65 = 139,856.66 : x
  2. Step 2: Convert to fraction form
    147,027.30/220,542.65 = 139,856.66/x
  3. Step 3: Cross multiply
    147,027.30x = 220,542.65 × 139,856.66
  4. Step 4: Simplify right side
    147,027.30x = 30,844,356,614.55
  5. Step 5: Solve for x
    x = 30,844,356,614.55/147,027.30
  6. Step 6: Final answer
    x = 209,786.59

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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.