Home / 127,986.08-191,988.83-98,043.62

Finding the Fourth Proportional to 127,986.08, 191,988.83 and 98,043.62

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Solution

The fourth proportional to 127,986.08, 191,988.83 and 98,043.62 is: 147,072.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,986.08 : 191,988.83 = 98,043.62 : x
  2. Step 2: Convert to fraction form
    127,986.08/191,988.83 = 98,043.62/x
  3. Step 3: Cross multiply
    127,986.08x = 191,988.83 × 98,043.62
  4. Step 4: Simplify right side
    127,986.08x = 18,823,279,177.93
  5. Step 5: Solve for x
    x = 18,823,279,177.93/127,986.08
  6. Step 6: Final answer
    x = 147,072.87

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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.