Home / 105,921.52-146,174.12-58,178

Finding the Fourth Proportional to 105,921.52, 146,174.12 and 58,178

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Solution

The fourth proportional to 105,921.52, 146,174.12 and 58,178 is: 80,286.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,921.52 : 146,174.12 = 58,178 : x
  2. Step 2: Convert to fraction form
    105,921.52/146,174.12 = 58,178/x
  3. Step 3: Cross multiply
    105,921.52x = 146,174.12 × 58,178
  4. Step 4: Simplify right side
    105,921.52x = 8,504,117,953.36
  5. Step 5: Solve for x
    x = 8,504,117,953.36/105,921.52
  6. Step 6: Final answer
    x = 80,286.97

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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.