Home / 106,420.01-159,522.21-69,003.81

Finding the Fourth Proportional to 106,420.01, 159,522.21 and 69,003.81

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Solution

The fourth proportional to 106,420.01, 159,522.21 and 69,003.81 is: 103,435.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,420.01 : 159,522.21 = 69,003.81 : x
  2. Step 2: Convert to fraction form
    106,420.01/159,522.21 = 69,003.81/x
  3. Step 3: Cross multiply
    106,420.01x = 159,522.21 × 69,003.81
  4. Step 4: Simplify right side
    106,420.01x = 11,007,640,269.62
  5. Step 5: Solve for x
    x = 11,007,640,269.62/106,420.01
  6. Step 6: Final answer
    x = 103,435.82

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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.