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Finding the Fourth Proportional to 168,013.60, 251,674.80 and 84,954.40

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Solution

The fourth proportional to 168,013.60, 251,674.80 and 84,954.40 is: 127,256.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,013.60 : 251,674.80 = 84,954.40 : x
  2. Step 2: Convert to fraction form
    168,013.60/251,674.80 = 84,954.40/x
  3. Step 3: Cross multiply
    168,013.60x = 251,674.80 × 84,954.40
  4. Step 4: Simplify right side
    168,013.60x = 21,380,881,629.12
  5. Step 5: Solve for x
    x = 21,380,881,629.12/168,013.60
  6. Step 6: Final answer
    x = 127,256.85

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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.