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Finding the Fourth Proportional to 159,852.58, 220,603.89 and 91,891.60

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Solution

The fourth proportional to 159,852.58, 220,603.89 and 91,891.60 is: 126,814.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,852.58 : 220,603.89 = 91,891.60 : x
  2. Step 2: Convert to fraction form
    159,852.58/220,603.89 = 91,891.60/x
  3. Step 3: Cross multiply
    159,852.58x = 220,603.89 × 91,891.60
  4. Step 4: Simplify right side
    159,852.58x = 20,271,644,418.32
  5. Step 5: Solve for x
    x = 20,271,644,418.32/159,852.58
  6. Step 6: Final answer
    x = 126,814.62

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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.