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Finding the Fourth Proportional to 154,761, 213,608.14 and 94,364.90

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Solution

The fourth proportional to 154,761, 213,608.14 and 94,364.90 is: 130,246.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,761 : 213,608.14 = 94,364.90 : x
  2. Step 2: Convert to fraction form
    154,761/213,608.14 = 94,364.90/x
  3. Step 3: Cross multiply
    154,761x = 213,608.14 × 94,364.90
  4. Step 4: Simplify right side
    154,761x = 20,157,110,770.29
  5. Step 5: Solve for x
    x = 20,157,110,770.29/154,761
  6. Step 6: Final answer
    x = 130,246.71

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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.