Home / 133,132.60-199,601.70-54,206.20

Finding the Fourth Proportional to 133,132.60, 199,601.70 and 54,206.20

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Solution

The fourth proportional to 133,132.60, 199,601.70 and 54,206.20 is: 81,269.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,132.60 : 199,601.70 = 54,206.20 : x
  2. Step 2: Convert to fraction form
    133,132.60/199,601.70 = 54,206.20/x
  3. Step 3: Cross multiply
    133,132.60x = 199,601.70 × 54,206.20
  4. Step 4: Simplify right side
    133,132.60x = 10,819,649,670.54
  5. Step 5: Solve for x
    x = 10,819,649,670.54/133,132.60
  6. Step 6: Final answer
    x = 81,269.72

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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.