Home / 140,840.67-194,364.86-77,177.91

Finding the Fourth Proportional to 140,840.67, 194,364.86 and 77,177.91

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Solution

The fourth proportional to 140,840.67, 194,364.86 and 77,177.91 is: 106,508.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,840.67 : 194,364.86 = 77,177.91 : x
  2. Step 2: Convert to fraction form
    140,840.67/194,364.86 = 77,177.91/x
  3. Step 3: Cross multiply
    140,840.67x = 194,364.86 × 77,177.91
  4. Step 4: Simplify right side
    140,840.67x = 15,000,673,672.24
  5. Step 5: Solve for x
    x = 15,000,673,672.24/140,840.67
  6. Step 6: Final answer
    x = 106,508.11

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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.