Home / 102,668.06-141,680.39-57,346.70

Finding the Fourth Proportional to 102,668.06, 141,680.39 and 57,346.70

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Solution

The fourth proportional to 102,668.06, 141,680.39 and 57,346.70 is: 79,137.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,668.06 : 141,680.39 = 57,346.70 : x
  2. Step 2: Convert to fraction form
    102,668.06/141,680.39 = 57,346.70/x
  3. Step 3: Cross multiply
    102,668.06x = 141,680.39 × 57,346.70
  4. Step 4: Simplify right side
    102,668.06x = 8,124,902,945.60
  5. Step 5: Solve for x
    x = 8,124,902,945.60/102,668.06
  6. Step 6: Final answer
    x = 79,137.59

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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.