Home / 131,824.68-197,868.24-72,688.20

Finding the Fourth Proportional to 131,824.68, 197,868.24 and 72,688.20

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Solution

The fourth proportional to 131,824.68, 197,868.24 and 72,688.20 is: 109,104.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,824.68 : 197,868.24 = 72,688.20 : x
  2. Step 2: Convert to fraction form
    131,824.68/197,868.24 = 72,688.20/x
  3. Step 3: Cross multiply
    131,824.68x = 197,868.24 × 72,688.20
  4. Step 4: Simplify right side
    131,824.68x = 14,382,686,202.77
  5. Step 5: Solve for x
    x = 14,382,686,202.77/131,824.68
  6. Step 6: Final answer
    x = 109,104.65

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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.