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Finding the Fourth Proportional to 169,420.28, 254,146.14 and 120,936.56

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Solution

The fourth proportional to 169,420.28, 254,146.14 and 120,936.56 is: 181,416.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,420.28 : 254,146.14 = 120,936.56 : x
  2. Step 2: Convert to fraction form
    169,420.28/254,146.14 = 120,936.56/x
  3. Step 3: Cross multiply
    169,420.28x = 254,146.14 × 120,936.56
  4. Step 4: Simplify right side
    169,420.28x = 30,735,558,638.15
  5. Step 5: Solve for x
    x = 30,735,558,638.15/169,420.28
  6. Step 6: Final answer
    x = 181,416.06

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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.