Home / 252,156.72-378,236.30-74,667.08

Finding the Fourth Proportional to 252,156.72, 378,236.30 and 74,667.08

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Solution

The fourth proportional to 252,156.72, 378,236.30 and 74,667.08 is: 112,000.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,156.72 : 378,236.30 = 74,667.08 : x
  2. Step 2: Convert to fraction form
    252,156.72/378,236.30 = 74,667.08/x
  3. Step 3: Cross multiply
    252,156.72x = 378,236.30 × 74,667.08
  4. Step 4: Simplify right side
    252,156.72x = 28,241,800,071.00
  5. Step 5: Solve for x
    x = 28,241,800,071.00/252,156.72
  6. Step 6: Final answer
    x = 112,000.98

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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.