Home / 167,120.28-230,626.10-90,639.37

Finding the Fourth Proportional to 167,120.28, 230,626.10 and 90,639.37

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Solution

The fourth proportional to 167,120.28, 230,626.10 and 90,639.37 is: 125,082.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,120.28 : 230,626.10 = 90,639.37 : x
  2. Step 2: Convert to fraction form
    167,120.28/230,626.10 = 90,639.37/x
  3. Step 3: Cross multiply
    167,120.28x = 230,626.10 × 90,639.37
  4. Step 4: Simplify right side
    167,120.28x = 20,903,804,924.44
  5. Step 5: Solve for x
    x = 20,903,804,924.44/167,120.28
  6. Step 6: Final answer
    x = 125,082.40

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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.