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Finding the Fourth Proportional to 169,830.56, 254,746.20 and 45,171.56

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Solution

The fourth proportional to 169,830.56, 254,746.20 and 45,171.56 is: 67,757.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,830.56 : 254,746.20 = 45,171.56 : x
  2. Step 2: Convert to fraction form
    169,830.56/254,746.20 = 45,171.56/x
  3. Step 3: Cross multiply
    169,830.56x = 254,746.20 × 45,171.56
  4. Step 4: Simplify right side
    169,830.56x = 11,507,283,258.07
  5. Step 5: Solve for x
    x = 11,507,283,258.07/169,830.56
  6. Step 6: Final answer
    x = 67,757.44

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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.