Home / 149,162.28-205,844.00-81,179.52

Finding the Fourth Proportional to 149,162.28, 205,844.00 and 81,179.52

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Solution

The fourth proportional to 149,162.28, 205,844.00 and 81,179.52 is: 112,027.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,162.28 : 205,844.00 = 81,179.52 : x
  2. Step 2: Convert to fraction form
    149,162.28/205,844.00 = 81,179.52/x
  3. Step 3: Cross multiply
    149,162.28x = 205,844.00 × 81,179.52
  4. Step 4: Simplify right side
    149,162.28x = 16,710,316,708.98
  5. Step 5: Solve for x
    x = 16,710,316,708.98/149,162.28
  6. Step 6: Final answer
    x = 112,027.76

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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.