Home / 188,611.28-282,916.92-89,815.76

Finding the Fourth Proportional to 188,611.28, 282,916.92 and 89,815.76

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Solution

The fourth proportional to 188,611.28, 282,916.92 and 89,815.76 is: 134,723.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,611.28 : 282,916.92 = 89,815.76 : x
  2. Step 2: Convert to fraction form
    188,611.28/282,916.92 = 89,815.76/x
  3. Step 3: Cross multiply
    188,611.28x = 282,916.92 × 89,815.76
  4. Step 4: Simplify right side
    188,611.28x = 25,410,398,186.66
  5. Step 5: Solve for x
    x = 25,410,398,186.66/188,611.28
  6. Step 6: Final answer
    x = 134,723.64

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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.