Home / 90,868.38-125,234.91-73,928.72

Finding the Fourth Proportional to 90,868.38, 125,234.91 and 73,928.72

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Solution

The fourth proportional to 90,868.38, 125,234.91 and 73,928.72 is: 101,888.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,868.38 : 125,234.91 = 73,928.72 : x
  2. Step 2: Convert to fraction form
    90,868.38/125,234.91 = 73,928.72/x
  3. Step 3: Cross multiply
    90,868.38x = 125,234.91 × 73,928.72
  4. Step 4: Simplify right side
    90,868.38x = 9,258,455,969.44
  5. Step 5: Solve for x
    x = 9,258,455,969.44/90,868.38
  6. Step 6: Final answer
    x = 101,888.64

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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.