Home / 85,263.06-127,960.56-68,663.82

Finding the Fourth Proportional to 85,263.06, 127,960.56 and 68,663.82

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Solution

The fourth proportional to 85,263.06, 127,960.56 and 68,663.82 is: 103,048.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,263.06 : 127,960.56 = 68,663.82 : x
  2. Step 2: Convert to fraction form
    85,263.06/127,960.56 = 68,663.82/x
  3. Step 3: Cross multiply
    85,263.06x = 127,960.56 × 68,663.82
  4. Step 4: Simplify right side
    85,263.06x = 8,786,260,858.94
  5. Step 5: Solve for x
    x = 8,786,260,858.94/85,263.06
  6. Step 6: Final answer
    x = 103,048.86

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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.