Home / 106,353.28-159,505.80-31,479.04

Finding the Fourth Proportional to 106,353.28, 159,505.80 and 31,479.04

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Solution

The fourth proportional to 106,353.28, 159,505.80 and 31,479.04 is: 47,211.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,353.28 : 159,505.80 = 31,479.04 : x
  2. Step 2: Convert to fraction form
    106,353.28/159,505.80 = 31,479.04/x
  3. Step 3: Cross multiply
    106,353.28x = 159,505.80 × 31,479.04
  4. Step 4: Simplify right side
    106,353.28x = 5,021,089,458.43
  5. Step 5: Solve for x
    x = 5,021,089,458.43/106,353.28
  6. Step 6: Final answer
    x = 47,211.42

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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.