Home / 101,209.08-150,995.28-91,120.62

Finding the Fourth Proportional to 101,209.08, 150,995.28 and 91,120.62

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Solution

The fourth proportional to 101,209.08, 150,995.28 and 91,120.62 is: 135,944.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,209.08 : 150,995.28 = 91,120.62 : x
  2. Step 2: Convert to fraction form
    101,209.08/150,995.28 = 91,120.62/x
  3. Step 3: Cross multiply
    101,209.08x = 150,995.28 × 91,120.62
  4. Step 4: Simplify right side
    101,209.08x = 13,758,783,530.67
  5. Step 5: Solve for x
    x = 13,758,783,530.67/101,209.08
  6. Step 6: Final answer
    x = 135,944.16

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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.