Home / 145,324.72-200,546.04-81,661.96

Finding the Fourth Proportional to 145,324.72, 200,546.04 and 81,661.96

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Solution

The fourth proportional to 145,324.72, 200,546.04 and 81,661.96 is: 112,692.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,324.72 : 200,546.04 = 81,661.96 : x
  2. Step 2: Convert to fraction form
    145,324.72/200,546.04 = 81,661.96/x
  3. Step 3: Cross multiply
    145,324.72x = 200,546.04 × 81,661.96
  4. Step 4: Simplify right side
    145,324.72x = 16,376,982,696.64
  5. Step 5: Solve for x
    x = 16,376,982,696.64/145,324.72
  6. Step 6: Final answer
    x = 112,692.34

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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.