Home / 201,628.12-278,247.80-110,993.16

Finding the Fourth Proportional to 201,628.12, 278,247.80 and 110,993.16

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Solution

The fourth proportional to 201,628.12, 278,247.80 and 110,993.16 is: 153,171.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,628.12 : 278,247.80 = 110,993.16 : x
  2. Step 2: Convert to fraction form
    201,628.12/278,247.80 = 110,993.16/x
  3. Step 3: Cross multiply
    201,628.12x = 278,247.80 × 110,993.16
  4. Step 4: Simplify right side
    201,628.12x = 30,883,602,585.05
  5. Step 5: Solve for x
    x = 30,883,602,585.05/201,628.12
  6. Step 6: Final answer
    x = 153,171.11

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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.