Home / 140,430.60-193,811.94-79,998.12

Finding the Fourth Proportional to 140,430.60, 193,811.94 and 79,998.12

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Solution

The fourth proportional to 140,430.60, 193,811.94 and 79,998.12 is: 110,407.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,430.60 : 193,811.94 = 79,998.12 : x
  2. Step 2: Convert to fraction form
    140,430.60/193,811.94 = 79,998.12/x
  3. Step 3: Cross multiply
    140,430.60x = 193,811.94 × 79,998.12
  4. Step 4: Simplify right side
    140,430.60x = 15,504,590,833.55
  5. Step 5: Solve for x
    x = 15,504,590,833.55/140,430.60
  6. Step 6: Final answer
    x = 110,407.50

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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.