Home / 196,981.78-294,999.20-112,486.13

Finding the Fourth Proportional to 196,981.78, 294,999.20 and 112,486.13

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Solution

The fourth proportional to 196,981.78, 294,999.20 and 112,486.13 is: 168,458.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,981.78 : 294,999.20 = 112,486.13 : x
  2. Step 2: Convert to fraction form
    196,981.78/294,999.20 = 112,486.13/x
  3. Step 3: Cross multiply
    196,981.78x = 294,999.20 × 112,486.13
  4. Step 4: Simplify right side
    196,981.78x = 33,183,316,323.67
  5. Step 5: Solve for x
    x = 33,183,316,323.67/196,981.78
  6. Step 6: Final answer
    x = 168,458.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.