Home / 140,718.24-194,191.47-76,188.15

Finding the Fourth Proportional to 140,718.24, 194,191.47 and 76,188.15

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Solution

The fourth proportional to 140,718.24, 194,191.47 and 76,188.15 is: 105,139.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,718.24 : 194,191.47 = 76,188.15 : x
  2. Step 2: Convert to fraction form
    140,718.24/194,191.47 = 76,188.15/x
  3. Step 3: Cross multiply
    140,718.24x = 194,191.47 × 76,188.15
  4. Step 4: Simplify right side
    140,718.24x = 14,795,088,845.08
  5. Step 5: Solve for x
    x = 14,795,088,845.08/140,718.24
  6. Step 6: Final answer
    x = 105,139.81

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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.