Home / 140,691.08-194,153.67-77,028.86

Finding the Fourth Proportional to 140,691.08, 194,153.67 and 77,028.86

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Solution

The fourth proportional to 140,691.08, 194,153.67 and 77,028.86 is: 106,299.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,691.08 : 194,153.67 = 77,028.86 : x
  2. Step 2: Convert to fraction form
    140,691.08/194,153.67 = 77,028.86/x
  3. Step 3: Cross multiply
    140,691.08x = 194,153.67 × 77,028.86
  4. Step 4: Simplify right side
    140,691.08x = 14,955,434,894.15
  5. Step 5: Solve for x
    x = 14,955,434,894.15/140,691.08
  6. Step 6: Final answer
    x = 106,299.81

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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.