Home / 72,453.38-108,152.30-67,111.04

Finding the Fourth Proportional to 72,453.38, 108,152.30 and 67,111.04

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Solution

The fourth proportional to 72,453.38, 108,152.30 and 67,111.04 is: 100,177.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,453.38 : 108,152.30 = 67,111.04 : x
  2. Step 2: Convert to fraction form
    72,453.38/108,152.30 = 67,111.04/x
  3. Step 3: Cross multiply
    72,453.38x = 108,152.30 × 67,111.04
  4. Step 4: Simplify right side
    72,453.38x = 7,258,213,331.39
  5. Step 5: Solve for x
    x = 7,258,213,331.39/72,453.38
  6. Step 6: Final answer
    x = 100,177.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.