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Finding the Fourth Proportional to 101,685.97, 152,668.68 and 51,799.69

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Solution

The fourth proportional to 101,685.97, 152,668.68 and 51,799.69 is: 77,770.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,685.97 : 152,668.68 = 51,799.69 : x
  2. Step 2: Convert to fraction form
    101,685.97/152,668.68 = 51,799.69/x
  3. Step 3: Cross multiply
    101,685.97x = 152,668.68 × 51,799.69
  4. Step 4: Simplify right side
    101,685.97x = 7,908,190,296.71
  5. Step 5: Solve for x
    x = 7,908,190,296.71/101,685.97
  6. Step 6: Final answer
    x = 77,770.71

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1.5x scale

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.