Home / 112,021.60-167,923.05-100,211.80

Finding the Fourth Proportional to 112,021.60, 167,923.05 and 100,211.80

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Solution

The fourth proportional to 112,021.60, 167,923.05 and 100,211.80 is: 150,219.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,021.60 : 167,923.05 = 100,211.80 : x
  2. Step 2: Convert to fraction form
    112,021.60/167,923.05 = 100,211.80/x
  3. Step 3: Cross multiply
    112,021.60x = 167,923.05 × 100,211.80
  4. Step 4: Simplify right side
    112,021.60x = 16,827,871,101.99
  5. Step 5: Solve for x
    x = 16,827,871,101.99/112,021.60
  6. Step 6: Final answer
    x = 150,219.88

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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.