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Finding the Fourth Proportional to 169,790.64, 254,685.68 and 45,131.64

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Solution

The fourth proportional to 169,790.64, 254,685.68 and 45,131.64 is: 67,697.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,790.64 : 254,685.68 = 45,131.64 : x
  2. Step 2: Convert to fraction form
    169,790.64/254,685.68 = 45,131.64/x
  3. Step 3: Cross multiply
    169,790.64x = 254,685.68 × 45,131.64
  4. Step 4: Simplify right side
    169,790.64x = 11,494,382,422.92
  5. Step 5: Solve for x
    x = 11,494,382,422.92/169,790.64
  6. Step 6: Final answer
    x = 67,697.39

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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.