Home / 127,817.10-191,723.85-57,696.30

Finding the Fourth Proportional to 127,817.10, 191,723.85 and 57,696.30

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Solution

The fourth proportional to 127,817.10, 191,723.85 and 57,696.30 is: 86,543.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,817.10 : 191,723.85 = 57,696.30 : x
  2. Step 2: Convert to fraction form
    127,817.10/191,723.85 = 57,696.30/x
  3. Step 3: Cross multiply
    127,817.10x = 191,723.85 × 57,696.30
  4. Step 4: Simplify right side
    127,817.10x = 11,061,756,766.76
  5. Step 5: Solve for x
    x = 11,061,756,766.76/127,817.10
  6. Step 6: Final answer
    x = 86,543.64

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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.