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Finding the Fourth Proportional to 158,192.88, 218,369.16 and 103,765.74

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Solution

The fourth proportional to 158,192.88, 218,369.16 and 103,765.74 is: 143,238.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,192.88 : 218,369.16 = 103,765.74 : x
  2. Step 2: Convert to fraction form
    158,192.88/218,369.16 = 103,765.74/x
  3. Step 3: Cross multiply
    158,192.88x = 218,369.16 × 103,765.74
  4. Step 4: Simplify right side
    158,192.88x = 22,659,237,480.58
  5. Step 5: Solve for x
    x = 22,659,237,480.58/158,192.88
  6. Step 6: Final answer
    x = 143,238.04

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1.5x scale

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.