Home / 138,601.02-191,318.56-82,012.26

Finding the Fourth Proportional to 138,601.02, 191,318.56 and 82,012.26

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Solution

The fourth proportional to 138,601.02, 191,318.56 and 82,012.26 is: 113,206.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,601.02 : 191,318.56 = 82,012.26 : x
  2. Step 2: Convert to fraction form
    138,601.02/191,318.56 = 82,012.26/x
  3. Step 3: Cross multiply
    138,601.02x = 191,318.56 × 82,012.26
  4. Step 4: Simplify right side
    138,601.02x = 15,690,467,485.55
  5. Step 5: Solve for x
    x = 15,690,467,485.55/138,601.02
  6. Step 6: Final answer
    x = 113,206.00

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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.