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Finding the Fourth Proportional to 169,639.80, 254,459.70 and 168,084.60

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Solution

The fourth proportional to 169,639.80, 254,459.70 and 168,084.60 is: 252,126.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,639.80 : 254,459.70 = 168,084.60 : x
  2. Step 2: Convert to fraction form
    169,639.80/254,459.70 = 168,084.60/x
  3. Step 3: Cross multiply
    169,639.80x = 254,459.70 × 168,084.60
  4. Step 4: Simplify right side
    169,639.80x = 42,770,756,890.62
  5. Step 5: Solve for x
    x = 42,770,756,890.62/169,639.80
  6. Step 6: Final answer
    x = 252,126.90

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1.5x scale

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.