Home / 177,725.40-266,739.30-72,619.80

Finding the Fourth Proportional to 177,725.40, 266,739.30 and 72,619.80

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Solution

The fourth proportional to 177,725.40, 266,739.30 and 72,619.80 is: 108,991.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,725.40 : 266,739.30 = 72,619.80 : x
  2. Step 2: Convert to fraction form
    177,725.40/266,739.30 = 72,619.80/x
  3. Step 3: Cross multiply
    177,725.40x = 266,739.30 × 72,619.80
  4. Step 4: Simplify right side
    177,725.40x = 19,370,554,618.14
  5. Step 5: Solve for x
    x = 19,370,554,618.14/177,725.40
  6. Step 6: Final answer
    x = 108,991.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.