Home / 134,954.56-202,369.20-78,811.30

Finding the Fourth Proportional to 134,954.56, 202,369.20 and 78,811.30

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Solution

The fourth proportional to 134,954.56, 202,369.20 and 78,811.30 is: 118,180.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,954.56 : 202,369.20 = 78,811.30 : x
  2. Step 2: Convert to fraction form
    134,954.56/202,369.20 = 78,811.30/x
  3. Step 3: Cross multiply
    134,954.56x = 202,369.20 × 78,811.30
  4. Step 4: Simplify right side
    134,954.56x = 15,948,979,731.96
  5. Step 5: Solve for x
    x = 15,948,979,731.96/134,954.56
  6. Step 6: Final answer
    x = 118,180.37

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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.