Home / 177,621.10-266,464.05-72,450.70

Finding the Fourth Proportional to 177,621.10, 266,464.05 and 72,450.70

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Solution

The fourth proportional to 177,621.10, 266,464.05 and 72,450.70 is: 108,689.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,621.10 : 266,464.05 = 72,450.70 : x
  2. Step 2: Convert to fraction form
    177,621.10/266,464.05 = 72,450.70/x
  3. Step 3: Cross multiply
    177,621.10x = 266,464.05 × 72,450.70
  4. Step 4: Simplify right side
    177,621.10x = 19,305,506,947.34
  5. Step 5: Solve for x
    x = 19,305,506,947.34/177,621.10
  6. Step 6: Final answer
    x = 108,689.27

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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.