Home / 181,221.10-250,091.49-100,650.13

Finding the Fourth Proportional to 181,221.10, 250,091.49 and 100,650.13

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Solution

The fourth proportional to 181,221.10, 250,091.49 and 100,650.13 is: 138,900.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,221.10 : 250,091.49 = 100,650.13 : x
  2. Step 2: Convert to fraction form
    181,221.10/250,091.49 = 100,650.13/x
  3. Step 3: Cross multiply
    181,221.10x = 250,091.49 × 100,650.13
  4. Step 4: Simplify right side
    181,221.10x = 25,171,740,980.39
  5. Step 5: Solve for x
    x = 25,171,740,980.39/181,221.10
  6. Step 6: Final answer
    x = 138,900.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.