Home / 127,961.80-191,942.70-98,437.30

Finding the Fourth Proportional to 127,961.80, 191,942.70 and 98,437.30

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Solution

The fourth proportional to 127,961.80, 191,942.70 and 98,437.30 is: 147,655.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,961.80 : 191,942.70 = 98,437.30 : x
  2. Step 2: Convert to fraction form
    127,961.80/191,942.70 = 98,437.30/x
  3. Step 3: Cross multiply
    127,961.80x = 191,942.70 × 98,437.30
  4. Step 4: Simplify right side
    127,961.80x = 18,894,321,142.71
  5. Step 5: Solve for x
    x = 18,894,321,142.71/127,961.80
  6. Step 6: Final answer
    x = 147,655.95

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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.