Home / 143,445.60-197,949.54-79,782.03

Finding the Fourth Proportional to 143,445.60, 197,949.54 and 79,782.03

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Solution

The fourth proportional to 143,445.60, 197,949.54 and 79,782.03 is: 110,096.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,445.60 : 197,949.54 = 79,782.03 : x
  2. Step 2: Convert to fraction form
    143,445.60/197,949.54 = 79,782.03/x
  3. Step 3: Cross multiply
    143,445.60x = 197,949.54 × 79,782.03
  4. Step 4: Simplify right side
    143,445.60x = 15,792,816,138.77
  5. Step 5: Solve for x
    x = 15,792,816,138.77/143,445.60
  6. Step 6: Final answer
    x = 110,096.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.