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Finding the Fourth Proportional to 170,099.80, 255,149.70 and 43,739.80

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Solution

The fourth proportional to 170,099.80, 255,149.70 and 43,739.80 is: 65,609.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,099.80 : 255,149.70 = 43,739.80 : x
  2. Step 2: Convert to fraction form
    170,099.80/255,149.70 = 43,739.80/x
  3. Step 3: Cross multiply
    170,099.80x = 255,149.70 × 43,739.80
  4. Step 4: Simplify right side
    170,099.80x = 11,160,196,848.06
  5. Step 5: Solve for x
    x = 11,160,196,848.06/170,099.80
  6. Step 6: Final answer
    x = 65,609.70

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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.