Home / 100,244.24-138,331.48-54,913.68

Finding the Fourth Proportional to 100,244.24, 138,331.48 and 54,913.68

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Solution

The fourth proportional to 100,244.24, 138,331.48 and 54,913.68 is: 75,777.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,244.24 : 138,331.48 = 54,913.68 : x
  2. Step 2: Convert to fraction form
    100,244.24/138,331.48 = 54,913.68/x
  3. Step 3: Cross multiply
    100,244.24x = 138,331.48 × 54,913.68
  4. Step 4: Simplify right side
    100,244.24x = 7,596,290,626.65
  5. Step 5: Solve for x
    x = 7,596,290,626.65/100,244.24
  6. Step 6: Final answer
    x = 75,777.83

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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.