Home / 123,649.50-185,473.96-81,222.74

Finding the Fourth Proportional to 123,649.50, 185,473.96 and 81,222.74

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Solution

The fourth proportional to 123,649.50, 185,473.96 and 81,222.74 is: 121,833.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,649.50 : 185,473.96 = 81,222.74 : x
  2. Step 2: Convert to fraction form
    123,649.50/185,473.96 = 81,222.74/x
  3. Step 3: Cross multiply
    123,649.50x = 185,473.96 × 81,222.74
  4. Step 4: Simplify right side
    123,649.50x = 15,064,703,229.85
  5. Step 5: Solve for x
    x = 15,064,703,229.85/123,649.50
  6. Step 6: Final answer
    x = 121,833.92

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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.