Home / 156,908.20-235,362.30-145,388.20

Finding the Fourth Proportional to 156,908.20, 235,362.30 and 145,388.20

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Solution

The fourth proportional to 156,908.20, 235,362.30 and 145,388.20 is: 218,082.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,908.20 : 235,362.30 = 145,388.20 : x
  2. Step 2: Convert to fraction form
    156,908.20/235,362.30 = 145,388.20/x
  3. Step 3: Cross multiply
    156,908.20x = 235,362.30 × 145,388.20
  4. Step 4: Simplify right side
    156,908.20x = 34,218,901,144.86
  5. Step 5: Solve for x
    x = 34,218,901,144.86/156,908.20
  6. Step 6: Final answer
    x = 218,082.30

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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.