Home / 203,561.21-280,918.98-112,914.23

Finding the Fourth Proportional to 203,561.21, 280,918.98 and 112,914.23

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Solution

The fourth proportional to 203,561.21, 280,918.98 and 112,914.23 is: 155,824.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,561.21 : 280,918.98 = 112,914.23 : x
  2. Step 2: Convert to fraction form
    203,561.21/280,918.98 = 112,914.23/x
  3. Step 3: Cross multiply
    203,561.21x = 280,918.98 × 112,914.23
  4. Step 4: Simplify right side
    203,561.21x = 31,719,750,319.09
  5. Step 5: Solve for x
    x = 31,719,750,319.09/203,561.21
  6. Step 6: Final answer
    x = 155,824.14

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1.5x scale

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.