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Finding the Fourth Proportional to 122,314.39, 183,489.81 and 43,422.01

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Solution

The fourth proportional to 122,314.39, 183,489.81 and 43,422.01 is: 65,139.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,314.39 : 183,489.81 = 43,422.01 : x
  2. Step 2: Convert to fraction form
    122,314.39/183,489.81 = 43,422.01/x
  3. Step 3: Cross multiply
    122,314.39x = 183,489.81 × 43,422.01
  4. Step 4: Simplify right side
    122,314.39x = 7,967,495,743.16
  5. Step 5: Solve for x
    x = 7,967,495,743.16/122,314.39
  6. Step 6: Final answer
    x = 65,139.48

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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.