Home / 135,723.51-187,298.66-75,294.15

Finding the Fourth Proportional to 135,723.51, 187,298.66 and 75,294.15

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Solution

The fourth proportional to 135,723.51, 187,298.66 and 75,294.15 is: 103,906.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,723.51 : 187,298.66 = 75,294.15 : x
  2. Step 2: Convert to fraction form
    135,723.51/187,298.66 = 75,294.15/x
  3. Step 3: Cross multiply
    135,723.51x = 187,298.66 × 75,294.15
  4. Step 4: Simplify right side
    135,723.51x = 14,102,493,400.84
  5. Step 5: Solve for x
    x = 14,102,493,400.84/135,723.51
  6. Step 6: Final answer
    x = 103,906.05

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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.