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Finding the Fourth Proportional to 169,912.08, 255,065.04 and 91,180.08

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Solution

The fourth proportional to 169,912.08, 255,065.04 and 91,180.08 is: 136,875.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,912.08 : 255,065.04 = 91,180.08 : x
  2. Step 2: Convert to fraction form
    169,912.08/255,065.04 = 91,180.08/x
  3. Step 3: Cross multiply
    169,912.08x = 255,065.04 × 91,180.08
  4. Step 4: Simplify right side
    169,912.08x = 23,256,850,752.40
  5. Step 5: Solve for x
    x = 23,256,850,752.40/169,912.08
  6. Step 6: Final answer
    x = 136,875.79

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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.