Home / 140,909.45-194,455.02-77,247.69

Finding the Fourth Proportional to 140,909.45, 194,455.02 and 77,247.69

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Solution

The fourth proportional to 140,909.45, 194,455.02 and 77,247.69 is: 106,601.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,909.45 : 194,455.02 = 77,247.69 : x
  2. Step 2: Convert to fraction form
    140,909.45/194,455.02 = 77,247.69/x
  3. Step 3: Cross multiply
    140,909.45x = 194,455.02 × 77,247.69
  4. Step 4: Simplify right side
    140,909.45x = 15,021,201,103.90
  5. Step 5: Solve for x
    x = 15,021,201,103.90/140,909.45
  6. Step 6: Final answer
    x = 106,601.80

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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.