Home / 177,719.40-266,730.30-72,613.80

Finding the Fourth Proportional to 177,719.40, 266,730.30 and 72,613.80

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Solution

The fourth proportional to 177,719.40, 266,730.30 and 72,613.80 is: 108,982.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,719.40 : 266,730.30 = 72,613.80 : x
  2. Step 2: Convert to fraction form
    177,719.40/266,730.30 = 72,613.80/x
  3. Step 3: Cross multiply
    177,719.40x = 266,730.30 × 72,613.80
  4. Step 4: Simplify right side
    177,719.40x = 19,368,300,658.14
  5. Step 5: Solve for x
    x = 19,368,300,658.14/177,719.40
  6. Step 6: Final answer
    x = 108,982.48

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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.