Home / 140,191.38-210,500.55-135,648

Finding the Fourth Proportional to 140,191.38, 210,500.55 and 135,648

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Solution

The fourth proportional to 140,191.38, 210,500.55 and 135,648 is: 203,678.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,191.38 : 210,500.55 = 135,648 : x
  2. Step 2: Convert to fraction form
    140,191.38/210,500.55 = 135,648/x
  3. Step 3: Cross multiply
    140,191.38x = 210,500.55 × 135,648
  4. Step 4: Simplify right side
    140,191.38x = 28,553,978,606.40
  5. Step 5: Solve for x
    x = 28,553,978,606.40/140,191.38
  6. Step 6: Final answer
    x = 203,678.56

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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.