Home / 143,556.75-198,108.32-79,894.62

Finding the Fourth Proportional to 143,556.75, 198,108.32 and 79,894.62

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Solution

The fourth proportional to 143,556.75, 198,108.32 and 79,894.62 is: 110,254.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,556.75 : 198,108.32 = 79,894.62 : x
  2. Step 2: Convert to fraction form
    143,556.75/198,108.32 = 79,894.62/x
  3. Step 3: Cross multiply
    143,556.75x = 198,108.32 × 79,894.62
  4. Step 4: Simplify right side
    143,556.75x = 15,827,788,545.77
  5. Step 5: Solve for x
    x = 15,827,788,545.77/143,556.75
  6. Step 6: Final answer
    x = 110,254.58

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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.