Home / 147,431.73-203,462.88-82,921.17

Finding the Fourth Proportional to 147,431.73, 203,462.88 and 82,921.17

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Solution

The fourth proportional to 147,431.73, 203,462.88 and 82,921.17 is: 114,435.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,431.73 : 203,462.88 = 82,921.17 : x
  2. Step 2: Convert to fraction form
    147,431.73/203,462.88 = 82,921.17/x
  3. Step 3: Cross multiply
    147,431.73x = 203,462.88 × 82,921.17
  4. Step 4: Simplify right side
    147,431.73x = 16,871,380,061.17
  5. Step 5: Solve for x
    x = 16,871,380,061.17/147,431.73
  6. Step 6: Final answer
    x = 114,435.20

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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.