Home / 253,316.03-380,078.66-111,087.68

Finding the Fourth Proportional to 253,316.03, 380,078.66 and 111,087.68

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Solution

The fourth proportional to 253,316.03, 380,078.66 and 111,087.68 is: 166,677.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,316.03 : 380,078.66 = 111,087.68 : x
  2. Step 2: Convert to fraction form
    253,316.03/380,078.66 = 111,087.68/x
  3. Step 3: Cross multiply
    253,316.03x = 380,078.66 × 111,087.68
  4. Step 4: Simplify right side
    253,316.03x = 42,222,054,934.23
  5. Step 5: Solve for x
    x = 42,222,054,934.23/253,316.03
  6. Step 6: Final answer
    x = 166,677.39

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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.