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Finding the Fourth Proportional to 169,807.26, 254,323.02 and 81,123.60

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Solution

The fourth proportional to 169,807.26, 254,323.02 and 81,123.60 is: 121,500.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,807.26 : 254,323.02 = 81,123.60 : x
  2. Step 2: Convert to fraction form
    169,807.26/254,323.02 = 81,123.60/x
  3. Step 3: Cross multiply
    169,807.26x = 254,323.02 × 81,123.60
  4. Step 4: Simplify right side
    169,807.26x = 20,631,598,945.27
  5. Step 5: Solve for x
    x = 20,631,598,945.27/169,807.26
  6. Step 6: Final answer
    x = 121,500.10

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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.