Home / 101,222.40-151,837.20-31,101.60

Finding the Fourth Proportional to 101,222.40, 151,837.20 and 31,101.60

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Solution

The fourth proportional to 101,222.40, 151,837.20 and 31,101.60 is: 46,653.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,222.40 : 151,837.20 = 31,101.60 : x
  2. Step 2: Convert to fraction form
    101,222.40/151,837.20 = 31,101.60/x
  3. Step 3: Cross multiply
    101,222.40x = 151,837.20 × 31,101.60
  4. Step 4: Simplify right side
    101,222.40x = 4,722,379,859.52
  5. Step 5: Solve for x
    x = 4,722,379,859.52/101,222.40
  6. Step 6: Final answer
    x = 46,653.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.