Home / 177,943.80-266,786.10-72,708.60

Finding the Fourth Proportional to 177,943.80, 266,786.10 and 72,708.60

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Solution

The fourth proportional to 177,943.80, 266,786.10 and 72,708.60 is: 109,009.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,943.80 : 266,786.10 = 72,708.60 : x
  2. Step 2: Convert to fraction form
    177,943.80/266,786.10 = 72,708.60/x
  3. Step 3: Cross multiply
    177,943.80x = 266,786.10 × 72,708.60
  4. Step 4: Simplify right side
    177,943.80x = 19,397,643,830.46
  5. Step 5: Solve for x
    x = 19,397,643,830.46/177,943.80
  6. Step 6: Final answer
    x = 109,009.94

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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.