Home / 118,219.92-163,119.60-75,216.48

Finding the Fourth Proportional to 118,219.92, 163,119.60 and 75,216.48

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Solution

The fourth proportional to 118,219.92, 163,119.60 and 75,216.48 is: 103,783.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,219.92 : 163,119.60 = 75,216.48 : x
  2. Step 2: Convert to fraction form
    118,219.92/163,119.60 = 75,216.48/x
  3. Step 3: Cross multiply
    118,219.92x = 163,119.60 × 75,216.48
  4. Step 4: Simplify right side
    118,219.92x = 12,269,282,131.01
  5. Step 5: Solve for x
    x = 12,269,282,131.01/118,219.92
  6. Step 6: Final answer
    x = 103,783.54

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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.