Home / 140,768.56-194,187-87,036.40

Finding the Fourth Proportional to 140,768.56, 194,187 and 87,036.40

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Solution

The fourth proportional to 140,768.56, 194,187 and 87,036.40 is: 120,064.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,768.56 : 194,187 = 87,036.40 : x
  2. Step 2: Convert to fraction form
    140,768.56/194,187 = 87,036.40/x
  3. Step 3: Cross multiply
    140,768.56x = 194,187 × 87,036.40
  4. Step 4: Simplify right side
    140,768.56x = 16,901,337,406.80
  5. Step 5: Solve for x
    x = 16,901,337,406.80/140,768.56
  6. Step 6: Final answer
    x = 120,064.72

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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.