Home / 100,669.20-151,004.70-30,548.51

Finding the Fourth Proportional to 100,669.20, 151,004.70 and 30,548.51

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Solution

The fourth proportional to 100,669.20, 151,004.70 and 30,548.51 is: 45,823.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,669.20 : 151,004.70 = 30,548.51 : x
  2. Step 2: Convert to fraction form
    100,669.20/151,004.70 = 30,548.51/x
  3. Step 3: Cross multiply
    100,669.20x = 151,004.70 × 30,548.51
  4. Step 4: Simplify right side
    100,669.20x = 4,612,968,513.80
  5. Step 5: Solve for x
    x = 4,612,968,513.80/100,669.20
  6. Step 6: Final answer
    x = 45,823.04

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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.