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Finding the Fourth Proportional to 138,859.45, 208,296.45 and 44,097.19

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Solution

The fourth proportional to 138,859.45, 208,296.45 and 44,097.19 is: 66,148.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,859.45 : 208,296.45 = 44,097.19 : x
  2. Step 2: Convert to fraction form
    138,859.45/208,296.45 = 44,097.19/x
  3. Step 3: Cross multiply
    138,859.45x = 208,296.45 × 44,097.19
  4. Step 4: Simplify right side
    138,859.45x = 9,185,287,611.23
  5. Step 5: Solve for x
    x = 9,185,287,611.23/138,859.45
  6. Step 6: Final answer
    x = 66,148.09

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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.