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Finding the Fourth Proportional to 101,152.60, 151,728.90 and 31,022.80

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Solution

The fourth proportional to 101,152.60, 151,728.90 and 31,022.80 is: 46,534.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,152.60 : 151,728.90 = 31,022.80 : x
  2. Step 2: Convert to fraction form
    101,152.60/151,728.90 = 31,022.80/x
  3. Step 3: Cross multiply
    101,152.60x = 151,728.90 × 31,022.80
  4. Step 4: Simplify right side
    101,152.60x = 4,707,055,318.92
  5. Step 5: Solve for x
    x = 4,707,055,318.92/101,152.60
  6. Step 6: Final answer
    x = 46,534.20

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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.