Home / 105,236.97-157,917.72-38,723.80

Finding the Fourth Proportional to 105,236.97, 157,917.72 and 38,723.80

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Solution

The fourth proportional to 105,236.97, 157,917.72 and 38,723.80 is: 58,108.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,236.97 : 157,917.72 = 38,723.80 : x
  2. Step 2: Convert to fraction form
    105,236.97/157,917.72 = 38,723.80/x
  3. Step 3: Cross multiply
    105,236.97x = 157,917.72 × 38,723.80
  4. Step 4: Simplify right side
    105,236.97x = 6,115,173,956.16
  5. Step 5: Solve for x
    x = 6,115,173,956.16/105,236.97
  6. Step 6: Final answer
    x = 58,108.61

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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.