Home / 109,239.20-163,783.20-55,800.80

Finding the Fourth Proportional to 109,239.20, 163,783.20 and 55,800.80

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Solution

The fourth proportional to 109,239.20, 163,783.20 and 55,800.80 is: 83,662.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,239.20 : 163,783.20 = 55,800.80 : x
  2. Step 2: Convert to fraction form
    109,239.20/163,783.20 = 55,800.80/x
  3. Step 3: Cross multiply
    109,239.20x = 163,783.20 × 55,800.80
  4. Step 4: Simplify right side
    109,239.20x = 9,139,233,586.56
  5. Step 5: Solve for x
    x = 9,139,233,586.56/109,239.20
  6. Step 6: Final answer
    x = 83,662.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.