Home / 135,724.86-187,295.40-75,298.14

Finding the Fourth Proportional to 135,724.86, 187,295.40 and 75,298.14

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Solution

The fourth proportional to 135,724.86, 187,295.40 and 75,298.14 is: 103,908.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,724.86 : 187,295.40 = 75,298.14 : x
  2. Step 2: Convert to fraction form
    135,724.86/187,295.40 = 75,298.14/x
  3. Step 3: Cross multiply
    135,724.86x = 187,295.40 × 75,298.14
  4. Step 4: Simplify right side
    135,724.86x = 14,102,995,250.56
  5. Step 5: Solve for x
    x = 14,102,995,250.56/135,724.86
  6. Step 6: Final answer
    x = 103,908.71

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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.