Home / 197,039.71-271,915.10-112,156.75

Finding the Fourth Proportional to 197,039.71, 271,915.10 and 112,156.75

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Solution

The fourth proportional to 197,039.71, 271,915.10 and 112,156.75 is: 154,776.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,039.71 : 271,915.10 = 112,156.75 : x
  2. Step 2: Convert to fraction form
    197,039.71/271,915.10 = 112,156.75/x
  3. Step 3: Cross multiply
    197,039.71x = 271,915.10 × 112,156.75
  4. Step 4: Simplify right side
    197,039.71x = 30,497,113,891.93
  5. Step 5: Solve for x
    x = 30,497,113,891.93/197,039.71
  6. Step 6: Final answer
    x = 154,776.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.