Home / 177,687.10-266,433.45-72,387.10

Finding the Fourth Proportional to 177,687.10, 266,433.45 and 72,387.10

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Solution

The fourth proportional to 177,687.10, 266,433.45 and 72,387.10 is: 108,541.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,687.10 : 266,433.45 = 72,387.10 : x
  2. Step 2: Convert to fraction form
    177,687.10/266,433.45 = 72,387.10/x
  3. Step 3: Cross multiply
    177,687.10x = 266,433.45 × 72,387.10
  4. Step 4: Simplify right side
    177,687.10x = 19,286,344,788.50
  5. Step 5: Solve for x
    x = 19,286,344,788.50/177,687.10
  6. Step 6: Final answer
    x = 108,541.05

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1.5x scale

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.