Home / 135,723.06-187,293.33-81,998.64

Finding the Fourth Proportional to 135,723.06, 187,293.33 and 81,998.64

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Solution

The fourth proportional to 135,723.06, 187,293.33 and 81,998.64 is: 113,155.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,723.06 : 187,293.33 = 81,998.64 : x
  2. Step 2: Convert to fraction form
    135,723.06/187,293.33 = 81,998.64/x
  3. Step 3: Cross multiply
    135,723.06x = 187,293.33 × 81,998.64
  4. Step 4: Simplify right side
    135,723.06x = 15,357,798,341.07
  5. Step 5: Solve for x
    x = 15,357,798,341.07/135,723.06
  6. Step 6: Final answer
    x = 113,155.41

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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.