Home / 133,043.60-199,565.40-122,157.20

Finding the Fourth Proportional to 133,043.60, 199,565.40 and 122,157.20

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Solution

The fourth proportional to 133,043.60, 199,565.40 and 122,157.20 is: 183,235.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,043.60 : 199,565.40 = 122,157.20 : x
  2. Step 2: Convert to fraction form
    133,043.60/199,565.40 = 122,157.20/x
  3. Step 3: Cross multiply
    133,043.60x = 199,565.40 × 122,157.20
  4. Step 4: Simplify right side
    133,043.60x = 24,378,350,480.88
  5. Step 5: Solve for x
    x = 24,378,350,480.88/133,043.60
  6. Step 6: Final answer
    x = 183,235.80

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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.