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Finding the Fourth Proportional to 110,726.70, 152,806.41 and 62,978.82

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Solution

The fourth proportional to 110,726.70, 152,806.41 and 62,978.82 is: 86,912.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,726.70 : 152,806.41 = 62,978.82 : x
  2. Step 2: Convert to fraction form
    110,726.70/152,806.41 = 62,978.82/x
  3. Step 3: Cross multiply
    110,726.70x = 152,806.41 × 62,978.82
  4. Step 4: Simplify right side
    110,726.70x = 9,623,567,390.24
  5. Step 5: Solve for x
    x = 9,623,567,390.24/110,726.70
  6. Step 6: Final answer
    x = 86,912.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.