Home / 150,121.20-225,109.08-61,339.44

Finding the Fourth Proportional to 150,121.20, 225,109.08 and 61,339.44

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Solution

The fourth proportional to 150,121.20, 225,109.08 and 61,339.44 is: 91,979.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,121.20 : 225,109.08 = 61,339.44 : x
  2. Step 2: Convert to fraction form
    150,121.20/225,109.08 = 61,339.44/x
  3. Step 3: Cross multiply
    150,121.20x = 225,109.08 × 61,339.44
  4. Step 4: Simplify right side
    150,121.20x = 13,808,064,906.12
  5. Step 5: Solve for x
    x = 13,808,064,906.12/150,121.20
  6. Step 6: Final answer
    x = 91,979.45

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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.