Home / 140,814.78-194,316.95-80,383.02

Finding the Fourth Proportional to 140,814.78, 194,316.95 and 80,383.02

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Solution

The fourth proportional to 140,814.78, 194,316.95 and 80,383.02 is: 110,924.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,814.78 : 194,316.95 = 80,383.02 : x
  2. Step 2: Convert to fraction form
    140,814.78/194,316.95 = 80,383.02/x
  3. Step 3: Cross multiply
    140,814.78x = 194,316.95 × 80,383.02
  4. Step 4: Simplify right side
    140,814.78x = 15,619,781,904.69
  5. Step 5: Solve for x
    x = 15,619,781,904.69/140,814.78
  6. Step 6: Final answer
    x = 110,924.31

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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.