Home / 140,447.79-193,817.93-76,785.57

Finding the Fourth Proportional to 140,447.79, 193,817.93 and 76,785.57

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Solution

The fourth proportional to 140,447.79, 193,817.93 and 76,785.57 is: 105,964.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,447.79 : 193,817.93 = 76,785.57 : x
  2. Step 2: Convert to fraction form
    140,447.79/193,817.93 = 76,785.57/x
  3. Step 3: Cross multiply
    140,447.79x = 193,817.93 × 76,785.57
  4. Step 4: Simplify right side
    140,447.79x = 14,882,419,847.34
  5. Step 5: Solve for x
    x = 14,882,419,847.34/140,447.79
  6. Step 6: Final answer
    x = 105,964.07

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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.