Home / 117,538.26-162,272.01-71,615.22

Finding the Fourth Proportional to 117,538.26, 162,272.01 and 71,615.22

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Solution

The fourth proportional to 117,538.26, 162,272.01 and 71,615.22 is: 98,871.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,538.26 : 162,272.01 = 71,615.22 : x
  2. Step 2: Convert to fraction form
    117,538.26/162,272.01 = 71,615.22/x
  3. Step 3: Cross multiply
    117,538.26x = 162,272.01 × 71,615.22
  4. Step 4: Simplify right side
    117,538.26x = 11,621,145,356.03
  5. Step 5: Solve for x
    x = 11,621,145,356.03/117,538.26
  6. Step 6: Final answer
    x = 98,871.17

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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.