Home / 112,261.80-168,003.90-102,930.60

Finding the Fourth Proportional to 112,261.80, 168,003.90 and 102,930.60

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Solution

The fourth proportional to 112,261.80, 168,003.90 and 102,930.60 is: 154,039.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,261.80 : 168,003.90 = 102,930.60 : x
  2. Step 2: Convert to fraction form
    112,261.80/168,003.90 = 102,930.60/x
  3. Step 3: Cross multiply
    112,261.80x = 168,003.90 × 102,930.60
  4. Step 4: Simplify right side
    112,261.80x = 17,292,742,229.34
  5. Step 5: Solve for x
    x = 17,292,742,229.34/112,261.80
  6. Step 6: Final answer
    x = 154,039.42

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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.