Home / 177,621.40-266,205.30-72,321.40

Finding the Fourth Proportional to 177,621.40, 266,205.30 and 72,321.40

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Solution

The fourth proportional to 177,621.40, 266,205.30 and 72,321.40 is: 108,389.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,621.40 : 266,205.30 = 72,321.40 : x
  2. Step 2: Convert to fraction form
    177,621.40/266,205.30 = 72,321.40/x
  3. Step 3: Cross multiply
    177,621.40x = 266,205.30 × 72,321.40
  4. Step 4: Simplify right side
    177,621.40x = 19,252,339,983.42
  5. Step 5: Solve for x
    x = 19,252,339,983.42/177,621.40
  6. Step 6: Final answer
    x = 108,389.75

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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.