Home / 135,037.20-186,350.28-74,611.92

Finding the Fourth Proportional to 135,037.20, 186,350.28 and 74,611.92

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Solution

The fourth proportional to 135,037.20, 186,350.28 and 74,611.92 is: 102,963.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,037.20 : 186,350.28 = 74,611.92 : x
  2. Step 2: Convert to fraction form
    135,037.20/186,350.28 = 74,611.92/x
  3. Step 3: Cross multiply
    135,037.20x = 186,350.28 × 74,611.92
  4. Step 4: Simplify right side
    135,037.20x = 13,903,952,183.34
  5. Step 5: Solve for x
    x = 13,903,952,183.34/135,037.20
  6. Step 6: Final answer
    x = 102,963.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.