Home / 101,649.22-140,273.84-56,326.80

Finding the Fourth Proportional to 101,649.22, 140,273.84 and 56,326.80

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Solution

The fourth proportional to 101,649.22, 140,273.84 and 56,326.80 is: 77,729.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,649.22 : 140,273.84 = 56,326.80 : x
  2. Step 2: Convert to fraction form
    101,649.22/140,273.84 = 56,326.80/x
  3. Step 3: Cross multiply
    101,649.22x = 140,273.84 × 56,326.80
  4. Step 4: Simplify right side
    101,649.22x = 7,901,176,530.91
  5. Step 5: Solve for x
    x = 7,901,176,530.91/101,649.22
  6. Step 6: Final answer
    x = 77,729.83

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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.