Home / 149,162.46-205,842.78-81,179.52

Finding the Fourth Proportional to 149,162.46, 205,842.78 and 81,179.52

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Solution

The fourth proportional to 149,162.46, 205,842.78 and 81,179.52 is: 112,026.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,162.46 : 205,842.78 = 81,179.52 : x
  2. Step 2: Convert to fraction form
    149,162.46/205,842.78 = 81,179.52/x
  3. Step 3: Cross multiply
    149,162.46x = 205,842.78 × 81,179.52
  4. Step 4: Simplify right side
    149,162.46x = 16,710,218,075.87
  5. Step 5: Solve for x
    x = 16,710,218,075.87/149,162.46
  6. Step 6: Final answer
    x = 112,026.97

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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.