Home / 140,784.56-194,209.04-87,052.40

Finding the Fourth Proportional to 140,784.56, 194,209.04 and 87,052.40

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Solution

The fourth proportional to 140,784.56, 194,209.04 and 87,052.40 is: 120,086.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,784.56 : 194,209.04 = 87,052.40 : x
  2. Step 2: Convert to fraction form
    140,784.56/194,209.04 = 87,052.40/x
  3. Step 3: Cross multiply
    140,784.56x = 194,209.04 × 87,052.40
  4. Step 4: Simplify right side
    140,784.56x = 16,906,363,033.70
  5. Step 5: Solve for x
    x = 16,906,363,033.70/140,784.56
  6. Step 6: Final answer
    x = 120,086.77

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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.