Home / 140,440.96-193,809.21-76,778.76

Finding the Fourth Proportional to 140,440.96, 193,809.21 and 76,778.76

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Solution

The fourth proportional to 140,440.96, 193,809.21 and 76,778.76 is: 105,955.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,440.96 : 193,809.21 = 76,778.76 : x
  2. Step 2: Convert to fraction form
    140,440.96/193,809.21 = 76,778.76/x
  3. Step 3: Cross multiply
    140,440.96x = 193,809.21 × 76,778.76
  4. Step 4: Simplify right side
    140,440.96x = 14,880,430,335.86
  5. Step 5: Solve for x
    x = 14,880,430,335.86/140,440.96
  6. Step 6: Final answer
    x = 105,955.06

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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.