Home / 198,078.71-273,341.22-117,457.98

Finding the Fourth Proportional to 198,078.71, 273,341.22 and 117,457.98

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Solution

The fourth proportional to 198,078.71, 273,341.22 and 117,457.98 is: 162,087.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,078.71 : 273,341.22 = 117,457.98 : x
  2. Step 2: Convert to fraction form
    198,078.71/273,341.22 = 117,457.98/x
  3. Step 3: Cross multiply
    198,078.71x = 273,341.22 × 117,457.98
  4. Step 4: Simplify right side
    198,078.71x = 32,106,107,551.94
  5. Step 5: Solve for x
    x = 32,106,107,551.94/198,078.71
  6. Step 6: Final answer
    x = 162,087.63

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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.