Home / 90,231.58-124,234.26-79,468.84

Finding the Fourth Proportional to 90,231.58, 124,234.26 and 79,468.84

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Solution

The fourth proportional to 90,231.58, 124,234.26 and 79,468.84 is: 109,415.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,231.58 : 124,234.26 = 79,468.84 : x
  2. Step 2: Convert to fraction form
    90,231.58/124,234.26 = 79,468.84/x
  3. Step 3: Cross multiply
    90,231.58x = 124,234.26 × 79,468.84
  4. Step 4: Simplify right side
    90,231.58x = 9,872,752,530.46
  5. Step 5: Solve for x
    x = 9,872,752,530.46/90,231.58
  6. Step 6: Final answer
    x = 109,415.71

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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.