Home / 202,056.38-303,115.72-68,905.50

Finding the Fourth Proportional to 202,056.38, 303,115.72 and 68,905.50

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Solution

The fourth proportional to 202,056.38, 303,115.72 and 68,905.50 is: 103,368.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,056.38 : 303,115.72 = 68,905.50 : x
  2. Step 2: Convert to fraction form
    202,056.38/303,115.72 = 68,905.50/x
  3. Step 3: Cross multiply
    202,056.38x = 303,115.72 × 68,905.50
  4. Step 4: Simplify right side
    202,056.38x = 20,886,340,244.46
  5. Step 5: Solve for x
    x = 20,886,340,244.46/202,056.38
  6. Step 6: Final answer
    x = 103,368.87

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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.