Home / 177,778.20-266,705.70-53,131.80

Finding the Fourth Proportional to 177,778.20, 266,705.70 and 53,131.80

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Solution

The fourth proportional to 177,778.20, 266,705.70 and 53,131.80 is: 79,709.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,778.20 : 266,705.70 = 53,131.80 : x
  2. Step 2: Convert to fraction form
    177,778.20/266,705.70 = 53,131.80/x
  3. Step 3: Cross multiply
    177,778.20x = 266,705.70 × 53,131.80
  4. Step 4: Simplify right side
    177,778.20x = 14,170,553,911.26
  5. Step 5: Solve for x
    x = 14,170,553,911.26/177,778.20
  6. Step 6: Final answer
    x = 79,709.18

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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.