Home / 135,869.86-187,491.27-75,437.38

Finding the Fourth Proportional to 135,869.86, 187,491.27 and 75,437.38

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Solution

The fourth proportional to 135,869.86, 187,491.27 and 75,437.38 is: 104,098.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,869.86 : 187,491.27 = 75,437.38 : x
  2. Step 2: Convert to fraction form
    135,869.86/187,491.27 = 75,437.38/x
  3. Step 3: Cross multiply
    135,869.86x = 187,491.27 × 75,437.38
  4. Step 4: Simplify right side
    135,869.86x = 14,143,850,181.67
  5. Step 5: Solve for x
    x = 14,143,850,181.67/135,869.86
  6. Step 6: Final answer
    x = 104,098.51

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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.