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Finding the Fourth Proportional to 158,227.62, 218,354.43 and 86,612.21

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Solution

The fourth proportional to 158,227.62, 218,354.43 and 86,612.21 is: 119,525.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,227.62 : 218,354.43 = 86,612.21 : x
  2. Step 2: Convert to fraction form
    158,227.62/218,354.43 = 86,612.21/x
  3. Step 3: Cross multiply
    158,227.62x = 218,354.43 × 86,612.21
  4. Step 4: Simplify right side
    158,227.62x = 18,912,159,745.59
  5. Step 5: Solve for x
    x = 18,912,159,745.59/158,227.62
  6. Step 6: Final answer
    x = 119,525.02

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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.