Home / 149,221.68-223,886-74,335.15

Finding the Fourth Proportional to 149,221.68, 223,886 and 74,335.15

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Solution

The fourth proportional to 149,221.68, 223,886 and 74,335.15 is: 111,529.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,221.68 : 223,886 = 74,335.15 : x
  2. Step 2: Convert to fraction form
    149,221.68/223,886 = 74,335.15/x
  3. Step 3: Cross multiply
    149,221.68x = 223,886 × 74,335.15
  4. Step 4: Simplify right side
    149,221.68x = 16,642,599,392.90
  5. Step 5: Solve for x
    x = 16,642,599,392.90/149,221.68
  6. Step 6: Final answer
    x = 111,529.37

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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.