Home / 137,581.62-189,889.87-89,243.46

Finding the Fourth Proportional to 137,581.62, 189,889.87 and 89,243.46

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Solution

The fourth proportional to 137,581.62, 189,889.87 and 89,243.46 is: 123,173.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,581.62 : 189,889.87 = 89,243.46 : x
  2. Step 2: Convert to fraction form
    137,581.62/189,889.87 = 89,243.46/x
  3. Step 3: Cross multiply
    137,581.62x = 189,889.87 × 89,243.46
  4. Step 4: Simplify right side
    137,581.62x = 16,946,427,622.08
  5. Step 5: Solve for x
    x = 16,946,427,622.08/137,581.62
  6. Step 6: Final answer
    x = 123,173.63

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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.