Home / 131,320.30-196,664.68-74,989.68

Finding the Fourth Proportional to 131,320.30, 196,664.68 and 74,989.68

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Solution

The fourth proportional to 131,320.30, 196,664.68 and 74,989.68 is: 112,304.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,320.30 : 196,664.68 = 74,989.68 : x
  2. Step 2: Convert to fraction form
    131,320.30/196,664.68 = 74,989.68/x
  3. Step 3: Cross multiply
    131,320.30x = 196,664.68 × 74,989.68
  4. Step 4: Simplify right side
    131,320.30x = 14,747,820,700.89
  5. Step 5: Solve for x
    x = 14,747,820,700.89/131,320.30
  6. Step 6: Final answer
    x = 112,304.19

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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.