Home / 181,811.10-272,619.45-76,511.10

Finding the Fourth Proportional to 181,811.10, 272,619.45 and 76,511.10

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Solution

The fourth proportional to 181,811.10, 272,619.45 and 76,511.10 is: 114,725.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,811.10 : 272,619.45 = 76,511.10 : x
  2. Step 2: Convert to fraction form
    181,811.10/272,619.45 = 76,511.10/x
  3. Step 3: Cross multiply
    181,811.10x = 272,619.45 × 76,511.10
  4. Step 4: Simplify right side
    181,811.10x = 20,858,414,000.90
  5. Step 5: Solve for x
    x = 20,858,414,000.90/181,811.10
  6. Step 6: Final answer
    x = 114,725.75

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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.