Home / 100,749.09-151,118.16-30,622.93

Finding the Fourth Proportional to 100,749.09, 151,118.16 and 30,622.93

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Solution

The fourth proportional to 100,749.09, 151,118.16 and 30,622.93 is: 45,932.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,749.09 : 151,118.16 = 30,622.93 : x
  2. Step 2: Convert to fraction form
    100,749.09/151,118.16 = 30,622.93/x
  3. Step 3: Cross multiply
    100,749.09x = 151,118.16 × 30,622.93
  4. Step 4: Simplify right side
    100,749.09x = 4,627,680,835.41
  5. Step 5: Solve for x
    x = 4,627,680,835.41/100,749.09
  6. Step 6: Final answer
    x = 45,932.73

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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.