Home / 101,116.36-139,539.30-55,176.04

Finding the Fourth Proportional to 101,116.36, 139,539.30 and 55,176.04

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Solution

The fourth proportional to 101,116.36, 139,539.30 and 55,176.04 is: 76,142.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,116.36 : 139,539.30 = 55,176.04 : x
  2. Step 2: Convert to fraction form
    101,116.36/139,539.30 = 55,176.04/x
  3. Step 3: Cross multiply
    101,116.36x = 139,539.30 × 55,176.04
  4. Step 4: Simplify right side
    101,116.36x = 7,699,225,998.37
  5. Step 5: Solve for x
    x = 7,699,225,998.37/101,116.36
  6. Step 6: Final answer
    x = 76,142.24

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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.