Home / 135,723.51-187,298.82-75,299.76

Finding the Fourth Proportional to 135,723.51, 187,298.82 and 75,299.76

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Solution

The fourth proportional to 135,723.51, 187,298.82 and 75,299.76 is: 103,913.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,723.51 : 187,298.82 = 75,299.76 : x
  2. Step 2: Convert to fraction form
    135,723.51/187,298.82 = 75,299.76/x
  3. Step 3: Cross multiply
    135,723.51x = 187,298.82 × 75,299.76
  4. Step 4: Simplify right side
    135,723.51x = 14,103,556,194.28
  5. Step 5: Solve for x
    x = 14,103,556,194.28/135,723.51
  6. Step 6: Final answer
    x = 103,913.88

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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.