Home / 189,617.48-261,722.58-117,956.84

Finding the Fourth Proportional to 189,617.48, 261,722.58 and 117,956.84

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Solution

The fourth proportional to 189,617.48, 261,722.58 and 117,956.84 is: 162,811.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,617.48 : 261,722.58 = 117,956.84 : x
  2. Step 2: Convert to fraction form
    189,617.48/261,722.58 = 117,956.84/x
  3. Step 3: Cross multiply
    189,617.48x = 261,722.58 × 117,956.84
  4. Step 4: Simplify right side
    189,617.48x = 30,871,968,493.45
  5. Step 5: Solve for x
    x = 30,871,968,493.45/189,617.48
  6. Step 6: Final answer
    x = 162,811.83

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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.