Home / 123,723.06-185,677.86-90,528.75

Finding the Fourth Proportional to 123,723.06, 185,677.86 and 90,528.75

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Solution

The fourth proportional to 123,723.06, 185,677.86 and 90,528.75 is: 135,861.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,723.06 : 185,677.86 = 90,528.75 : x
  2. Step 2: Convert to fraction form
    123,723.06/185,677.86 = 90,528.75/x
  3. Step 3: Cross multiply
    123,723.06x = 185,677.86 × 90,528.75
  4. Step 4: Simplify right side
    123,723.06x = 16,809,184,568.48
  5. Step 5: Solve for x
    x = 16,809,184,568.48/123,723.06
  6. Step 6: Final answer
    x = 135,861.37

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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.