Home / 197,031.28-271,917-112,148.36

Finding the Fourth Proportional to 197,031.28, 271,917 and 112,148.36

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Solution

The fourth proportional to 197,031.28, 271,917 and 112,148.36 is: 154,772.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,031.28 : 271,917 = 112,148.36 : x
  2. Step 2: Convert to fraction form
    197,031.28/271,917 = 112,148.36/x
  3. Step 3: Cross multiply
    197,031.28x = 271,917 × 112,148.36
  4. Step 4: Simplify right side
    197,031.28x = 30,495,045,606.12
  5. Step 5: Solve for x
    x = 30,495,045,606.12/197,031.28
  6. Step 6: Final answer
    x = 154,772.61

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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.