Home / 140,963.20-211,444.80-107,785.60

Finding the Fourth Proportional to 140,963.20, 211,444.80 and 107,785.60

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Solution

The fourth proportional to 140,963.20, 211,444.80 and 107,785.60 is: 161,678.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,963.20 : 211,444.80 = 107,785.60 : x
  2. Step 2: Convert to fraction form
    140,963.20/211,444.80 = 107,785.60/x
  3. Step 3: Cross multiply
    140,963.20x = 211,444.80 × 107,785.60
  4. Step 4: Simplify right side
    140,963.20x = 22,790,704,634.88
  5. Step 5: Solve for x
    x = 22,790,704,634.88/140,963.20
  6. Step 6: Final answer
    x = 161,678.40

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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.