Home / 201,918.20-278,643.30-117,043.16

Finding the Fourth Proportional to 201,918.20, 278,643.30 and 117,043.16

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Solution

The fourth proportional to 201,918.20, 278,643.30 and 117,043.16 is: 161,517.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,918.20 : 278,643.30 = 117,043.16 : x
  2. Step 2: Convert to fraction form
    201,918.20/278,643.30 = 117,043.16/x
  3. Step 3: Cross multiply
    201,918.20x = 278,643.30 × 117,043.16
  4. Step 4: Simplify right side
    201,918.20x = 32,613,292,344.83
  5. Step 5: Solve for x
    x = 32,613,292,344.83/201,918.20
  6. Step 6: Final answer
    x = 161,517.35

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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.