Home / 146,305.89-201,899.70-81,776.64

Finding the Fourth Proportional to 146,305.89, 201,899.70 and 81,776.64

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Solution

The fourth proportional to 146,305.89, 201,899.70 and 81,776.64 is: 112,850.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,305.89 : 201,899.70 = 81,776.64 : x
  2. Step 2: Convert to fraction form
    146,305.89/201,899.70 = 81,776.64/x
  3. Step 3: Cross multiply
    146,305.89x = 201,899.70 × 81,776.64
  4. Step 4: Simplify right side
    146,305.89x = 16,510,679,083.01
  5. Step 5: Solve for x
    x = 16,510,679,083.01/146,305.89
  6. Step 6: Final answer
    x = 112,850.41

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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.