Home / 105,917.68-146,167.40-58,172

Finding the Fourth Proportional to 105,917.68, 146,167.40 and 58,172

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Solution

The fourth proportional to 105,917.68, 146,167.40 and 58,172 is: 80,277.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,917.68 : 146,167.40 = 58,172 : x
  2. Step 2: Convert to fraction form
    105,917.68/146,167.40 = 58,172/x
  3. Step 3: Cross multiply
    105,917.68x = 146,167.40 × 58,172
  4. Step 4: Simplify right side
    105,917.68x = 8,502,849,992.80
  5. Step 5: Solve for x
    x = 8,502,849,992.80/105,917.68
  6. Step 6: Final answer
    x = 80,277.91

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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.