Home / 140,785.00-194,288.15-77,122.80

Finding the Fourth Proportional to 140,785.00, 194,288.15 and 77,122.80

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Solution

The fourth proportional to 140,785.00, 194,288.15 and 77,122.80 is: 106,432.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,785.00 : 194,288.15 = 77,122.80 : x
  2. Step 2: Convert to fraction form
    140,785.00/194,288.15 = 77,122.80/x
  3. Step 3: Cross multiply
    140,785.00x = 194,288.15 × 77,122.80
  4. Step 4: Simplify right side
    140,785.00x = 14,984,046,327.63
  5. Step 5: Solve for x
    x = 14,984,046,327.63/140,785.00
  6. Step 6: Final answer
    x = 106,432.12

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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.