Home / 159,795.94-220,511-91,765.04

Finding the Fourth Proportional to 159,795.94, 220,511 and 91,765.04

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Solution

The fourth proportional to 159,795.94, 220,511 and 91,765.04 is: 126,631.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,795.94 : 220,511 = 91,765.04 : x
  2. Step 2: Convert to fraction form
    159,795.94/220,511 = 91,765.04/x
  3. Step 3: Cross multiply
    159,795.94x = 220,511 × 91,765.04
  4. Step 4: Simplify right side
    159,795.94x = 20,235,200,735.44
  5. Step 5: Solve for x
    x = 20,235,200,735.44/159,795.94
  6. Step 6: Final answer
    x = 126,631.51

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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.