Home / 143,970.20-198,677.52-79,440.02

Finding the Fourth Proportional to 143,970.20, 198,677.52 and 79,440.02

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Solution

The fourth proportional to 143,970.20, 198,677.52 and 79,440.02 is: 109,626.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,970.20 : 198,677.52 = 79,440.02 : x
  2. Step 2: Convert to fraction form
    143,970.20/198,677.52 = 79,440.02/x
  3. Step 3: Cross multiply
    143,970.20x = 198,677.52 × 79,440.02
  4. Step 4: Simplify right side
    143,970.20x = 15,782,946,162.35
  5. Step 5: Solve for x
    x = 15,782,946,162.35/143,970.20
  6. Step 6: Final answer
    x = 109,626.48

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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.