Home / 111,431.20-167,535.60-109,098.40

Finding the Fourth Proportional to 111,431.20, 167,535.60 and 109,098.40

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Solution

The fourth proportional to 111,431.20, 167,535.60 and 109,098.40 is: 164,028.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,431.20 : 167,535.60 = 109,098.40 : x
  2. Step 2: Convert to fraction form
    111,431.20/167,535.60 = 109,098.40/x
  3. Step 3: Cross multiply
    111,431.20x = 167,535.60 × 109,098.40
  4. Step 4: Simplify right side
    111,431.20x = 18,277,865,903.04
  5. Step 5: Solve for x
    x = 18,277,865,903.04/111,431.20
  6. Step 6: Final answer
    x = 164,028.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.