Home / 106,435.18-159,679.05-31,555.33

Finding the Fourth Proportional to 106,435.18, 159,679.05 and 31,555.33

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Solution

The fourth proportional to 106,435.18, 159,679.05 and 31,555.33 is: 47,340.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,435.18 : 159,679.05 = 31,555.33 : x
  2. Step 2: Convert to fraction form
    106,435.18/159,679.05 = 31,555.33/x
  3. Step 3: Cross multiply
    106,435.18x = 159,679.05 × 31,555.33
  4. Step 4: Simplify right side
    106,435.18x = 5,038,724,711.58
  5. Step 5: Solve for x
    x = 5,038,724,711.58/106,435.18
  6. Step 6: Final answer
    x = 47,340.78

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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.