Home / 161,139.82-241,626.70-72,317.18

Finding the Fourth Proportional to 161,139.82, 241,626.70 and 72,317.18

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Solution

The fourth proportional to 161,139.82, 241,626.70 and 72,317.18 is: 108,438.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,139.82 : 241,626.70 = 72,317.18 : x
  2. Step 2: Convert to fraction form
    161,139.82/241,626.70 = 72,317.18/x
  3. Step 3: Cross multiply
    161,139.82x = 241,626.70 × 72,317.18
  4. Step 4: Simplify right side
    161,139.82x = 17,473,761,556.71
  5. Step 5: Solve for x
    x = 17,473,761,556.71/161,139.82
  6. Step 6: Final answer
    x = 108,438.51

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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.