Home / 154,027.30-231,062.81-47,420.11

Finding the Fourth Proportional to 154,027.30, 231,062.81 and 47,420.11

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Solution

The fourth proportional to 154,027.30, 231,062.81 and 47,420.11 is: 71,136.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,027.30 : 231,062.81 = 47,420.11 : x
  2. Step 2: Convert to fraction form
    154,027.30/231,062.81 = 47,420.11/x
  3. Step 3: Cross multiply
    154,027.30x = 231,062.81 × 47,420.11
  4. Step 4: Simplify right side
    154,027.30x = 10,957,024,835.44
  5. Step 5: Solve for x
    x = 10,957,024,835.44/154,027.30
  6. Step 6: Final answer
    x = 71,136.90

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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.