Home / 135,409.25-203,141.22-93,309.50

Finding the Fourth Proportional to 135,409.25, 203,141.22 and 93,309.50

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Solution

The fourth proportional to 135,409.25, 203,141.22 and 93,309.50 is: 139,983.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,409.25 : 203,141.22 = 93,309.50 : x
  2. Step 2: Convert to fraction form
    135,409.25/203,141.22 = 93,309.50/x
  3. Step 3: Cross multiply
    135,409.25x = 203,141.22 × 93,309.50
  4. Step 4: Simplify right side
    135,409.25x = 18,955,005,825.53
  5. Step 5: Solve for x
    x = 18,955,005,825.53/135,409.25
  6. Step 6: Final answer
    x = 139,983.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.