Home / 98,770.46-136,365.54-68,546.12

Finding the Fourth Proportional to 98,770.46, 136,365.54 and 68,546.12

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Solution

The fourth proportional to 98,770.46, 136,365.54 and 68,546.12 is: 94,636.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,770.46 : 136,365.54 = 68,546.12 : x
  2. Step 2: Convert to fraction form
    98,770.46/136,365.54 = 68,546.12/x
  3. Step 3: Cross multiply
    98,770.46x = 136,365.54 × 68,546.12
  4. Step 4: Simplify right side
    98,770.46x = 9,347,328,668.70
  5. Step 5: Solve for x
    x = 9,347,328,668.70/98,770.46
  6. Step 6: Final answer
    x = 94,636.89

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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.