Home / 105,690.27-158,357.09-52,311.06

Finding the Fourth Proportional to 105,690.27, 158,357.09 and 52,311.06

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Solution

The fourth proportional to 105,690.27, 158,357.09 and 52,311.06 is: 78,378.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,690.27 : 158,357.09 = 52,311.06 : x
  2. Step 2: Convert to fraction form
    105,690.27/158,357.09 = 52,311.06/x
  3. Step 3: Cross multiply
    105,690.27x = 158,357.09 × 52,311.06
  4. Step 4: Simplify right side
    105,690.27x = 8,283,826,974.86
  5. Step 5: Solve for x
    x = 8,283,826,974.86/105,690.27
  6. Step 6: Final answer
    x = 78,378.33

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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.