Home / 112,908.10-169,362.44-38,080.81

Finding the Fourth Proportional to 112,908.10, 169,362.44 and 38,080.81

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Solution

The fourth proportional to 112,908.10, 169,362.44 and 38,080.81 is: 57,121.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,908.10 : 169,362.44 = 38,080.81 : x
  2. Step 2: Convert to fraction form
    112,908.10/169,362.44 = 38,080.81/x
  3. Step 3: Cross multiply
    112,908.10x = 169,362.44 × 38,080.81
  4. Step 4: Simplify right side
    112,908.10x = 6,449,458,051.96
  5. Step 5: Solve for x
    x = 6,449,458,051.96/112,908.10
  6. Step 6: Final answer
    x = 57,121.31

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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.