Home / 105,983.30-158,992.27-31,105.89

Finding the Fourth Proportional to 105,983.30, 158,992.27 and 31,105.89

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Solution

The fourth proportional to 105,983.30, 158,992.27 and 31,105.89 is: 46,663.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,983.30 : 158,992.27 = 31,105.89 : x
  2. Step 2: Convert to fraction form
    105,983.30/158,992.27 = 31,105.89/x
  3. Step 3: Cross multiply
    105,983.30x = 158,992.27 × 31,105.89
  4. Step 4: Simplify right side
    105,983.30x = 4,945,595,983.71
  5. Step 5: Solve for x
    x = 4,945,595,983.71/105,983.30
  6. Step 6: Final answer
    x = 46,663.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.