Home / 134,378.96-185,423.40-80,652.56

Finding the Fourth Proportional to 134,378.96, 185,423.40 and 80,652.56

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Solution

The fourth proportional to 134,378.96, 185,423.40 and 80,652.56 is: 111,288.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,378.96 : 185,423.40 = 80,652.56 : x
  2. Step 2: Convert to fraction form
    134,378.96/185,423.40 = 80,652.56/x
  3. Step 3: Cross multiply
    134,378.96x = 185,423.40 × 80,652.56
  4. Step 4: Simplify right side
    134,378.96x = 14,954,871,893.90
  5. Step 5: Solve for x
    x = 14,954,871,893.90/134,378.96
  6. Step 6: Final answer
    x = 111,288.79

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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.