Home / 140,908.64-194,461.75-80,498.90

Finding the Fourth Proportional to 140,908.64, 194,461.75 and 80,498.90

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Solution

The fourth proportional to 140,908.64, 194,461.75 and 80,498.90 is: 111,092.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,908.64 : 194,461.75 = 80,498.90 : x
  2. Step 2: Convert to fraction form
    140,908.64/194,461.75 = 80,498.90/x
  3. Step 3: Cross multiply
    140,908.64x = 194,461.75 × 80,498.90
  4. Step 4: Simplify right side
    140,908.64x = 15,653,956,967.08
  5. Step 5: Solve for x
    x = 15,653,956,967.08/140,908.64
  6. Step 6: Final answer
    x = 111,092.95

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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.