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Finding the Fourth Proportional to 169,491.20, 254,236.80 and 103,061.60

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Solution

The fourth proportional to 169,491.20, 254,236.80 and 103,061.60 is: 154,592.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,491.20 : 254,236.80 = 103,061.60 : x
  2. Step 2: Convert to fraction form
    169,491.20/254,236.80 = 103,061.60/x
  3. Step 3: Cross multiply
    169,491.20x = 254,236.80 × 103,061.60
  4. Step 4: Simplify right side
    169,491.20x = 26,202,051,386.88
  5. Step 5: Solve for x
    x = 26,202,051,386.88/169,491.20
  6. Step 6: Final answer
    x = 154,592.40

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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.