Home / 140,864.92-194,383.74-80,438.92

Finding the Fourth Proportional to 140,864.92, 194,383.74 and 80,438.92

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Solution

The fourth proportional to 140,864.92, 194,383.74 and 80,438.92 is: 111,000.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,864.92 : 194,383.74 = 80,438.92 : x
  2. Step 2: Convert to fraction form
    140,864.92/194,383.74 = 80,438.92/x
  3. Step 3: Cross multiply
    140,864.92x = 194,383.74 × 80,438.92
  4. Step 4: Simplify right side
    140,864.92x = 15,636,018,111.16
  5. Step 5: Solve for x
    x = 15,636,018,111.16/140,864.92
  6. Step 6: Final answer
    x = 111,000.09

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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.