Home / 137,358.14-189,532.58-80,006.90

Finding the Fourth Proportional to 137,358.14, 189,532.58 and 80,006.90

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Solution

The fourth proportional to 137,358.14, 189,532.58 and 80,006.90 is: 110,396.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,358.14 : 189,532.58 = 80,006.90 : x
  2. Step 2: Convert to fraction form
    137,358.14/189,532.58 = 80,006.90/x
  3. Step 3: Cross multiply
    137,358.14x = 189,532.58 × 80,006.90
  4. Step 4: Simplify right side
    137,358.14x = 15,163,914,174.80
  5. Step 5: Solve for x
    x = 15,163,914,174.80/137,358.14
  6. Step 6: Final answer
    x = 110,396.91

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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.