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Finding the Fourth Proportional to 97,119.78, 145,679.70 and 26,999.70

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Solution

The fourth proportional to 97,119.78, 145,679.70 and 26,999.70 is: 40,499.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,119.78 : 145,679.70 = 26,999.70 : x
  2. Step 2: Convert to fraction form
    97,119.78/145,679.70 = 26,999.70/x
  3. Step 3: Cross multiply
    97,119.78x = 145,679.70 × 26,999.70
  4. Step 4: Simplify right side
    97,119.78x = 3,933,308,196.09
  5. Step 5: Solve for x
    x = 3,933,308,196.09/97,119.78
  6. Step 6: Final answer
    x = 40,499.56

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Similar ratio
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1.5x scale

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.