Home / 196,877.31-271,596.13-128,864.31

Finding the Fourth Proportional to 196,877.31, 271,596.13 and 128,864.31

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Solution

The fourth proportional to 196,877.31, 271,596.13 and 128,864.31 is: 177,770.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,877.31 : 271,596.13 = 128,864.31 : x
  2. Step 2: Convert to fraction form
    196,877.31/271,596.13 = 128,864.31/x
  3. Step 3: Cross multiply
    196,877.31x = 271,596.13 × 128,864.31
  4. Step 4: Simplify right side
    196,877.31x = 34,999,047,891.12
  5. Step 5: Solve for x
    x = 34,999,047,891.12/196,877.31
  6. Step 6: Final answer
    x = 177,770.86

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1.5x scale

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.