Home / 177,717.40-266,727.30-72,611.80

Finding the Fourth Proportional to 177,717.40, 266,727.30 and 72,611.80

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Solution

The fourth proportional to 177,717.40, 266,727.30 and 72,611.80 is: 108,979.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,717.40 : 266,727.30 = 72,611.80 : x
  2. Step 2: Convert to fraction form
    177,717.40/266,727.30 = 72,611.80/x
  3. Step 3: Cross multiply
    177,717.40x = 266,727.30 × 72,611.80
  4. Step 4: Simplify right side
    177,717.40x = 19,367,549,362.14
  5. Step 5: Solve for x
    x = 19,367,549,362.14/177,717.40
  6. Step 6: Final answer
    x = 108,979.48

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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.