Home / 100,749.70-151,133.01-30,629.62

Finding the Fourth Proportional to 100,749.70, 151,133.01 and 30,629.62

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Solution

The fourth proportional to 100,749.70, 151,133.01 and 30,629.62 is: 45,947.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,749.70 : 151,133.01 = 30,629.62 : x
  2. Step 2: Convert to fraction form
    100,749.70/151,133.01 = 30,629.62/x
  3. Step 3: Cross multiply
    100,749.70x = 151,133.01 × 30,629.62
  4. Step 4: Simplify right side
    100,749.70x = 4,629,146,665.76
  5. Step 5: Solve for x
    x = 4,629,146,665.76/100,749.70
  6. Step 6: Final answer
    x = 45,947.00

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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.