Home / 143,418.72-197,902.68-79,746.24

Finding the Fourth Proportional to 143,418.72, 197,902.68 and 79,746.24

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Solution

The fourth proportional to 143,418.72, 197,902.68 and 79,746.24 is: 110,041.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,418.72 : 197,902.68 = 79,746.24 : x
  2. Step 2: Convert to fraction form
    143,418.72/197,902.68 = 79,746.24/x
  3. Step 3: Cross multiply
    143,418.72x = 197,902.68 × 79,746.24
  4. Step 4: Simplify right side
    143,418.72x = 15,781,994,615.92
  5. Step 5: Solve for x
    x = 15,781,994,615.92/143,418.72
  6. Step 6: Final answer
    x = 110,041.39

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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.