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Finding the Fourth Proportional to 193,115.90, 266,489.27 and 107,069.87

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Solution

The fourth proportional to 193,115.90, 266,489.27 and 107,069.87 is: 147,750.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,115.90 : 266,489.27 = 107,069.87 : x
  2. Step 2: Convert to fraction form
    193,115.90/266,489.27 = 107,069.87/x
  3. Step 3: Cross multiply
    193,115.90x = 266,489.27 × 107,069.87
  4. Step 4: Simplify right side
    193,115.90x = 28,532,971,130.95
  5. Step 5: Solve for x
    x = 28,532,971,130.95/193,115.90
  6. Step 6: Final answer
    x = 147,750.50

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