Home / 140,678.43-194,154.71-80,235.23

Finding the Fourth Proportional to 140,678.43, 194,154.71 and 80,235.23

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Solution

The fourth proportional to 140,678.43, 194,154.71 and 80,235.23 is: 110,735.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,678.43 : 194,154.71 = 80,235.23 : x
  2. Step 2: Convert to fraction form
    140,678.43/194,154.71 = 80,235.23/x
  3. Step 3: Cross multiply
    140,678.43x = 194,154.71 × 80,235.23
  4. Step 4: Simplify right side
    140,678.43x = 15,578,046,440.48
  5. Step 5: Solve for x
    x = 15,578,046,440.48/140,678.43
  6. Step 6: Final answer
    x = 110,735.15

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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.