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Finding the Fourth Proportional to 158,620.43, 218,820.74 and 94,945.92

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Solution

The fourth proportional to 158,620.43, 218,820.74 and 94,945.92 is: 130,980.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,620.43 : 218,820.74 = 94,945.92 : x
  2. Step 2: Convert to fraction form
    158,620.43/218,820.74 = 94,945.92/x
  3. Step 3: Cross multiply
    158,620.43x = 218,820.74 × 94,945.92
  4. Step 4: Simplify right side
    158,620.43x = 20,776,135,999.65
  5. Step 5: Solve for x
    x = 20,776,135,999.65/158,620.43
  6. Step 6: Final answer
    x = 130,980.21

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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.