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Finding the Fourth Proportional to 169,977.90, 254,448.45 and 99,648.30

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Solution

The fourth proportional to 169,977.90, 254,448.45 and 99,648.30 is: 149,168.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,977.90 : 254,448.45 = 99,648.30 : x
  2. Step 2: Convert to fraction form
    169,977.90/254,448.45 = 99,648.30/x
  3. Step 3: Cross multiply
    169,977.90x = 254,448.45 × 99,648.30
  4. Step 4: Simplify right side
    169,977.90x = 25,355,355,480.14
  5. Step 5: Solve for x
    x = 25,355,355,480.14/169,977.90
  6. Step 6: Final answer
    x = 149,168.54

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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.