Home / 137,047.05-189,114.48-83,324.61

Finding the Fourth Proportional to 137,047.05, 189,114.48 and 83,324.61

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Solution

The fourth proportional to 137,047.05, 189,114.48 and 83,324.61 is: 114,981.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,047.05 : 189,114.48 = 83,324.61 : x
  2. Step 2: Convert to fraction form
    137,047.05/189,114.48 = 83,324.61/x
  3. Step 3: Cross multiply
    137,047.05x = 189,114.48 × 83,324.61
  4. Step 4: Simplify right side
    137,047.05x = 15,757,890,291.35
  5. Step 5: Solve for x
    x = 15,757,890,291.35/137,047.05
  6. Step 6: Final answer
    x = 114,981.61

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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.