Home / 101,210.07-150,996.78-91,121.61

Finding the Fourth Proportional to 101,210.07, 150,996.78 and 91,121.61

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Solution

The fourth proportional to 101,210.07, 150,996.78 and 91,121.61 is: 135,945.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,210.07 : 150,996.78 = 91,121.61 : x
  2. Step 2: Convert to fraction form
    101,210.07/150,996.78 = 91,121.61/x
  3. Step 3: Cross multiply
    101,210.07x = 150,996.78 × 91,121.61
  4. Step 4: Simplify right side
    101,210.07x = 13,759,069,698.42
  5. Step 5: Solve for x
    x = 13,759,069,698.42/101,210.07
  6. Step 6: Final answer
    x = 135,945.66

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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.