Home / 105,923.72-146,174.28-58,178

Finding the Fourth Proportional to 105,923.72, 146,174.28 and 58,178

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Solution

The fourth proportional to 105,923.72, 146,174.28 and 58,178 is: 80,285.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,923.72 : 146,174.28 = 58,178 : x
  2. Step 2: Convert to fraction form
    105,923.72/146,174.28 = 58,178/x
  3. Step 3: Cross multiply
    105,923.72x = 146,174.28 × 58,178
  4. Step 4: Simplify right side
    105,923.72x = 8,504,127,261.84
  5. Step 5: Solve for x
    x = 8,504,127,261.84/105,923.72
  6. Step 6: Final answer
    x = 80,285.39

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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.