Home / 105,739.22-158,558.61-61,379.57

Finding the Fourth Proportional to 105,739.22, 158,558.61 and 61,379.57

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Solution

The fourth proportional to 105,739.22, 158,558.61 and 61,379.57 is: 92,040.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,739.22 : 158,558.61 = 61,379.57 : x
  2. Step 2: Convert to fraction form
    105,739.22/158,558.61 = 61,379.57/x
  3. Step 3: Cross multiply
    105,739.22x = 158,558.61 × 61,379.57
  4. Step 4: Simplify right side
    105,739.22x = 9,732,259,301.60
  5. Step 5: Solve for x
    x = 9,732,259,301.60/105,739.22
  6. Step 6: Final answer
    x = 92,040.20

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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.