Home / 203,022.18-280,106.20-118,122.84

Finding the Fourth Proportional to 203,022.18, 280,106.20 and 118,122.84

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Solution

The fourth proportional to 203,022.18, 280,106.20 and 118,122.84 is: 162,972.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,022.18 : 280,106.20 = 118,122.84 : x
  2. Step 2: Convert to fraction form
    203,022.18/280,106.20 = 118,122.84/x
  3. Step 3: Cross multiply
    203,022.18x = 280,106.20 × 118,122.84
  4. Step 4: Simplify right side
    203,022.18x = 33,086,939,845.61
  5. Step 5: Solve for x
    x = 33,086,939,845.61/203,022.18
  6. Step 6: Final answer
    x = 162,972.04

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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.