Home / 162,144.20-243,221.76-43,816.56

Finding the Fourth Proportional to 162,144.20, 243,221.76 and 43,816.56

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Solution

The fourth proportional to 162,144.20, 243,221.76 and 43,816.56 is: 65,726.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,144.20 : 243,221.76 = 43,816.56 : x
  2. Step 2: Convert to fraction form
    162,144.20/243,221.76 = 43,816.56/x
  3. Step 3: Cross multiply
    162,144.20x = 243,221.76 × 43,816.56
  4. Step 4: Simplify right side
    162,144.20x = 10,657,140,840.35
  5. Step 5: Solve for x
    x = 10,657,140,840.35/162,144.20
  6. Step 6: Final answer
    x = 65,726.32

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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.