Home / 144,132.42-198,889.65-80,458.50

Finding the Fourth Proportional to 144,132.42, 198,889.65 and 80,458.50

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Solution

The fourth proportional to 144,132.42, 198,889.65 and 80,458.50 is: 111,025.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,132.42 : 198,889.65 = 80,458.50 : x
  2. Step 2: Convert to fraction form
    144,132.42/198,889.65 = 80,458.50/x
  3. Step 3: Cross multiply
    144,132.42x = 198,889.65 × 80,458.50
  4. Step 4: Simplify right side
    144,132.42x = 16,002,362,904.53
  5. Step 5: Solve for x
    x = 16,002,362,904.53/144,132.42
  6. Step 6: Final answer
    x = 111,025.42

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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.