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Finding the Fourth Proportional to 110,743.95, 152,773.50 and 72,486.66

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Solution

The fourth proportional to 110,743.95, 152,773.50 and 72,486.66 is: 99,996.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,743.95 : 152,773.50 = 72,486.66 : x
  2. Step 2: Convert to fraction form
    110,743.95/152,773.50 = 72,486.66/x
  3. Step 3: Cross multiply
    110,743.95x = 152,773.50 × 72,486.66
  4. Step 4: Simplify right side
    110,743.95x = 11,074,040,751.51
  5. Step 5: Solve for x
    x = 11,074,040,751.51/110,743.95
  6. Step 6: Final answer
    x = 99,996.80

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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.