Home / 137,286.36-189,398.88-83,528.28

Finding the Fourth Proportional to 137,286.36, 189,398.88 and 83,528.28

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Solution

The fourth proportional to 137,286.36, 189,398.88 and 83,528.28 is: 115,234.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,286.36 : 189,398.88 = 83,528.28 : x
  2. Step 2: Convert to fraction form
    137,286.36/189,398.88 = 83,528.28/x
  3. Step 3: Cross multiply
    137,286.36x = 189,398.88 × 83,528.28
  4. Step 4: Simplify right side
    137,286.36x = 15,820,162,680.33
  5. Step 5: Solve for x
    x = 15,820,162,680.33/137,286.36
  6. Step 6: Final answer
    x = 115,234.77

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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.