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Finding the Fourth Proportional to 154,465, 213,336.66 and 104,076.52

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Solution

The fourth proportional to 154,465, 213,336.66 and 104,076.52 is: 143,743.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,465 : 213,336.66 = 104,076.52 : x
  2. Step 2: Convert to fraction form
    154,465/213,336.66 = 104,076.52/x
  3. Step 3: Cross multiply
    154,465x = 213,336.66 × 104,076.52
  4. Step 4: Simplify right side
    154,465x = 22,203,337,161.22
  5. Step 5: Solve for x
    x = 22,203,337,161.22/154,465
  6. Step 6: Final answer
    x = 143,743.48

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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.