Home / 159,928.32-220,665.60-91,941.12

Finding the Fourth Proportional to 159,928.32, 220,665.60 and 91,941.12

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Solution

The fourth proportional to 159,928.32, 220,665.60 and 91,941.12 is: 126,858.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,928.32 : 220,665.60 = 91,941.12 : x
  2. Step 2: Convert to fraction form
    159,928.32/220,665.60 = 91,941.12/x
  3. Step 3: Cross multiply
    159,928.32x = 220,665.60 × 91,941.12
  4. Step 4: Simplify right side
    159,928.32x = 20,288,242,409.47
  5. Step 5: Solve for x
    x = 20,288,242,409.47/159,928.32
  6. Step 6: Final answer
    x = 126,858.35

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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.