Home / 105,739.72-158,559.36-61,380.08

Finding the Fourth Proportional to 105,739.72, 158,559.36 and 61,380.08

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Solution

The fourth proportional to 105,739.72, 158,559.36 and 61,380.08 is: 92,040.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,739.72 : 158,559.36 = 61,380.08 : x
  2. Step 2: Convert to fraction form
    105,739.72/158,559.36 = 61,380.08/x
  3. Step 3: Cross multiply
    105,739.72x = 158,559.36 × 61,380.08
  4. Step 4: Simplify right side
    105,739.72x = 9,732,386,201.55
  5. Step 5: Solve for x
    x = 9,732,386,201.55/105,739.72
  6. Step 6: Final answer
    x = 92,040.97

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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.