Home / 167,410.45-231,028.10-90,931.04

Finding the Fourth Proportional to 167,410.45, 231,028.10 and 90,931.04

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Solution

The fourth proportional to 167,410.45, 231,028.10 and 90,931.04 is: 125,485.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,410.45 : 231,028.10 = 90,931.04 : x
  2. Step 2: Convert to fraction form
    167,410.45/231,028.10 = 90,931.04/x
  3. Step 3: Cross multiply
    167,410.45x = 231,028.10 × 90,931.04
  4. Step 4: Simplify right side
    167,410.45x = 21,007,624,247.08
  5. Step 5: Solve for x
    x = 21,007,624,247.08/167,410.45
  6. Step 6: Final answer
    x = 125,485.74

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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.