Home / 131,431.70-197,039.55-56,609.30

Finding the Fourth Proportional to 131,431.70, 197,039.55 and 56,609.30

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Solution

The fourth proportional to 131,431.70, 197,039.55 and 56,609.30 is: 84,867.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,431.70 : 197,039.55 = 56,609.30 : x
  2. Step 2: Convert to fraction form
    131,431.70/197,039.55 = 56,609.30/x
  3. Step 3: Cross multiply
    131,431.70x = 197,039.55 × 56,609.30
  4. Step 4: Simplify right side
    131,431.70x = 11,154,270,997.82
  5. Step 5: Solve for x
    x = 11,154,270,997.82/131,431.70
  6. Step 6: Final answer
    x = 84,867.43

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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.