Home / 126,477.12-174,619.78-81,174.62

Finding the Fourth Proportional to 126,477.12, 174,619.78 and 81,174.62

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Solution

The fourth proportional to 126,477.12, 174,619.78 and 81,174.62 is: 112,073.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,477.12 : 174,619.78 = 81,174.62 : x
  2. Step 2: Convert to fraction form
    126,477.12/174,619.78 = 81,174.62/x
  3. Step 3: Cross multiply
    126,477.12x = 174,619.78 × 81,174.62
  4. Step 4: Simplify right side
    126,477.12x = 14,174,694,285.98
  5. Step 5: Solve for x
    x = 14,174,694,285.98/126,477.12
  6. Step 6: Final answer
    x = 112,073.19

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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.