Home / 97,719.30-146,141.55-81,972.90

Finding the Fourth Proportional to 97,719.30, 146,141.55 and 81,972.90

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Solution

The fourth proportional to 97,719.30, 146,141.55 and 81,972.90 is: 122,592.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,719.30 : 146,141.55 = 81,972.90 : x
  2. Step 2: Convert to fraction form
    97,719.30/146,141.55 = 81,972.90/x
  3. Step 3: Cross multiply
    97,719.30x = 146,141.55 × 81,972.90
  4. Step 4: Simplify right side
    97,719.30x = 11,979,646,664.00
  5. Step 5: Solve for x
    x = 11,979,646,664.00/97,719.30
  6. Step 6: Final answer
    x = 122,592.43

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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.