Home / 196,615.50-271,252.37-121,032.78

Finding the Fourth Proportional to 196,615.50, 271,252.37 and 121,032.78

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Solution

The fourth proportional to 196,615.50, 271,252.37 and 121,032.78 is: 166,977.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,615.50 : 271,252.37 = 121,032.78 : x
  2. Step 2: Convert to fraction form
    196,615.50/271,252.37 = 121,032.78/x
  3. Step 3: Cross multiply
    196,615.50x = 271,252.37 × 121,032.78
  4. Step 4: Simplify right side
    196,615.50x = 32,830,428,422.69
  5. Step 5: Solve for x
    x = 32,830,428,422.69/196,615.50
  6. Step 6: Final answer
    x = 166,977.82

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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.