Home / 407,669.29-611,534.03-108,143.25

Finding the Fourth Proportional to 407,669.29, 611,534.03 and 108,143.25

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Solution

The fourth proportional to 407,669.29, 611,534.03 and 108,143.25 is: 162,222.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,669.29 : 611,534.03 = 108,143.25 : x
  2. Step 2: Convert to fraction form
    407,669.29/611,534.03 = 108,143.25/x
  3. Step 3: Cross multiply
    407,669.29x = 611,534.03 × 108,143.25
  4. Step 4: Simplify right side
    407,669.29x = 66,133,277,489.80
  5. Step 5: Solve for x
    x = 66,133,277,489.80/407,669.29
  6. Step 6: Final answer
    x = 162,222.86

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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.