Home / 126,133.65-174,065.80-68,772.50

Finding the Fourth Proportional to 126,133.65, 174,065.80 and 68,772.50

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Solution

The fourth proportional to 126,133.65, 174,065.80 and 68,772.50 is: 94,906.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,133.65 : 174,065.80 = 68,772.50 : x
  2. Step 2: Convert to fraction form
    126,133.65/174,065.80 = 68,772.50/x
  3. Step 3: Cross multiply
    126,133.65x = 174,065.80 × 68,772.50
  4. Step 4: Simplify right side
    126,133.65x = 11,970,940,230.50
  5. Step 5: Solve for x
    x = 11,970,940,230.50/126,133.65
  6. Step 6: Final answer
    x = 94,906.79

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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.