Home / 201,456.37-278,016.60-110,815.75

Finding the Fourth Proportional to 201,456.37, 278,016.60 and 110,815.75

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Solution

The fourth proportional to 201,456.37, 278,016.60 and 110,815.75 is: 152,929.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,456.37 : 278,016.60 = 110,815.75 : x
  2. Step 2: Convert to fraction form
    201,456.37/278,016.60 = 110,815.75/x
  3. Step 3: Cross multiply
    201,456.37x = 278,016.60 × 110,815.75
  4. Step 4: Simplify right side
    201,456.37x = 30,808,618,041.45
  5. Step 5: Solve for x
    x = 30,808,618,041.45/201,456.37
  6. Step 6: Final answer
    x = 152,929.48

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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.