Home / 127,728.18-191,587.41-34,231.50

Finding the Fourth Proportional to 127,728.18, 191,587.41 and 34,231.50

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Solution

The fourth proportional to 127,728.18, 191,587.41 and 34,231.50 is: 51,345.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,728.18 : 191,587.41 = 34,231.50 : x
  2. Step 2: Convert to fraction form
    127,728.18/191,587.41 = 34,231.50/x
  3. Step 3: Cross multiply
    127,728.18x = 191,587.41 × 34,231.50
  4. Step 4: Simplify right side
    127,728.18x = 6,558,324,425.42
  5. Step 5: Solve for x
    x = 6,558,324,425.42/127,728.18
  6. Step 6: Final answer
    x = 51,345.95

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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.