Home / 203,035.09-280,184.38-112,391.03

Finding the Fourth Proportional to 203,035.09, 280,184.38 and 112,391.03

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Solution

The fourth proportional to 203,035.09, 280,184.38 and 112,391.03 is: 155,097.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,035.09 : 280,184.38 = 112,391.03 : x
  2. Step 2: Convert to fraction form
    203,035.09/280,184.38 = 112,391.03/x
  3. Step 3: Cross multiply
    203,035.09x = 280,184.38 × 112,391.03
  4. Step 4: Simplify right side
    203,035.09x = 31,490,211,058.11
  5. Step 5: Solve for x
    x = 31,490,211,058.11/203,035.09
  6. Step 6: Final answer
    x = 155,097.38

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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.