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Finding the Fourth Proportional to 168,057.60, 231,950.40 and 104,380.80

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Solution

The fourth proportional to 168,057.60, 231,950.40 and 104,380.80 is: 144,064.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,057.60 : 231,950.40 = 104,380.80 : x
  2. Step 2: Convert to fraction form
    168,057.60/231,950.40 = 104,380.80/x
  3. Step 3: Cross multiply
    168,057.60x = 231,950.40 × 104,380.80
  4. Step 4: Simplify right side
    168,057.60x = 24,211,168,312.32
  5. Step 5: Solve for x
    x = 24,211,168,312.32/168,057.60
  6. Step 6: Final answer
    x = 144,064.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.