Home / 131,426.79-197,137.30-36,654.45

Finding the Fourth Proportional to 131,426.79, 197,137.30 and 36,654.45

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Solution

The fourth proportional to 131,426.79, 197,137.30 and 36,654.45 is: 54,980.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,426.79 : 197,137.30 = 36,654.45 : x
  2. Step 2: Convert to fraction form
    131,426.79/197,137.30 = 36,654.45/x
  3. Step 3: Cross multiply
    131,426.79x = 197,137.30 × 36,654.45
  4. Step 4: Simplify right side
    131,426.79x = 7,225,959,305.99
  5. Step 5: Solve for x
    x = 7,225,959,305.99/131,426.79
  6. Step 6: Final answer
    x = 54,980.87

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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.