Home / 252,031.32-378,115.80-74,538.12

Finding the Fourth Proportional to 252,031.32, 378,115.80 and 74,538.12

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Solution

The fourth proportional to 252,031.32, 378,115.80 and 74,538.12 is: 111,827.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,031.32 : 378,115.80 = 74,538.12 : x
  2. Step 2: Convert to fraction form
    252,031.32/378,115.80 = 74,538.12/x
  3. Step 3: Cross multiply
    252,031.32x = 378,115.80 × 74,538.12
  4. Step 4: Simplify right side
    252,031.32x = 28,184,040,874.30
  5. Step 5: Solve for x
    x = 28,184,040,874.30/252,031.32
  6. Step 6: Final answer
    x = 111,827.53

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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.