Home / 117,415.25-162,041.07-66,427.96

Finding the Fourth Proportional to 117,415.25, 162,041.07 and 66,427.96

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Solution

The fourth proportional to 117,415.25, 162,041.07 and 66,427.96 is: 91,675.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,415.25 : 162,041.07 = 66,427.96 : x
  2. Step 2: Convert to fraction form
    117,415.25/162,041.07 = 66,427.96/x
  3. Step 3: Cross multiply
    117,415.25x = 162,041.07 × 66,427.96
  4. Step 4: Simplify right side
    117,415.25x = 10,764,057,889.99
  5. Step 5: Solve for x
    x = 10,764,057,889.99/117,415.25
  6. Step 6: Final answer
    x = 91,675.13

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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.