Home / 106,939.36-160,318.81-67,409.34

Finding the Fourth Proportional to 106,939.36, 160,318.81 and 67,409.34

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Solution

The fourth proportional to 106,939.36, 160,318.81 and 67,409.34 is: 101,057.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,939.36 : 160,318.81 = 67,409.34 : x
  2. Step 2: Convert to fraction form
    106,939.36/160,318.81 = 67,409.34/x
  3. Step 3: Cross multiply
    106,939.36x = 160,318.81 × 67,409.34
  4. Step 4: Simplify right side
    106,939.36x = 10,806,985,171.69
  5. Step 5: Solve for x
    x = 10,806,985,171.69/106,939.36
  6. Step 6: Final answer
    x = 101,057.13

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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.