Home / 133,068.40-199,602.60-131,318.80

Finding the Fourth Proportional to 133,068.40, 199,602.60 and 131,318.80

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Solution

The fourth proportional to 133,068.40, 199,602.60 and 131,318.80 is: 196,978.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,068.40 : 199,602.60 = 131,318.80 : x
  2. Step 2: Convert to fraction form
    133,068.40/199,602.60 = 131,318.80/x
  3. Step 3: Cross multiply
    133,068.40x = 199,602.60 × 131,318.80
  4. Step 4: Simplify right side
    133,068.40x = 26,211,573,908.88
  5. Step 5: Solve for x
    x = 26,211,573,908.88/133,068.40
  6. Step 6: Final answer
    x = 196,978.20

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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.