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Finding the Fourth Proportional to 135,608.65, 187,150.98 and 75,198.23

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Solution

The fourth proportional to 135,608.65, 187,150.98 and 75,198.23 is: 103,779.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,608.65 : 187,150.98 = 75,198.23 : x
  2. Step 2: Convert to fraction form
    135,608.65/187,150.98 = 75,198.23/x
  3. Step 3: Cross multiply
    135,608.65x = 187,150.98 × 75,198.23
  4. Step 4: Simplify right side
    135,608.65x = 14,073,422,438.77
  5. Step 5: Solve for x
    x = 14,073,422,438.77/135,608.65
  6. Step 6: Final answer
    x = 103,779.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.