Home / 133,218.40-199,827.60-74,025.76

Finding the Fourth Proportional to 133,218.40, 199,827.60 and 74,025.76

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Solution

The fourth proportional to 133,218.40, 199,827.60 and 74,025.76 is: 111,038.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,218.40 : 199,827.60 = 74,025.76 : x
  2. Step 2: Convert to fraction form
    133,218.40/199,827.60 = 74,025.76/x
  3. Step 3: Cross multiply
    133,218.40x = 199,827.60 × 74,025.76
  4. Step 4: Simplify right side
    133,218.40x = 14,792,389,958.98
  5. Step 5: Solve for x
    x = 14,792,389,958.98/133,218.40
  6. Step 6: Final answer
    x = 111,038.64

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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.