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Finding the Fourth Proportional to 120,967.98, 181,427.60 and 75,969.24

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Solution

The fourth proportional to 120,967.98, 181,427.60 and 75,969.24 is: 113,938.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,967.98 : 181,427.60 = 75,969.24 : x
  2. Step 2: Convert to fraction form
    120,967.98/181,427.60 = 75,969.24/x
  3. Step 3: Cross multiply
    120,967.98x = 181,427.60 × 75,969.24
  4. Step 4: Simplify right side
    120,967.98x = 13,782,916,887.02
  5. Step 5: Solve for x
    x = 13,782,916,887.02/120,967.98
  6. Step 6: Final answer
    x = 113,938.56

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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.