Home / 196,211.89-270,824.18-115,693.05

Finding the Fourth Proportional to 196,211.89, 270,824.18 and 115,693.05

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Solution

The fourth proportional to 196,211.89, 270,824.18 and 115,693.05 is: 159,686.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,211.89 : 270,824.18 = 115,693.05 : x
  2. Step 2: Convert to fraction form
    196,211.89/270,824.18 = 115,693.05/x
  3. Step 3: Cross multiply
    196,211.89x = 270,824.18 × 115,693.05
  4. Step 4: Simplify right side
    196,211.89x = 31,332,475,397.95
  5. Step 5: Solve for x
    x = 31,332,475,397.95/196,211.89
  6. Step 6: Final answer
    x = 159,686.94

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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.