Home / 203,554.11-280,871.03-112,895.67

Finding the Fourth Proportional to 203,554.11, 280,871.03 and 112,895.67

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Solution

The fourth proportional to 203,554.11, 280,871.03 and 112,895.67 is: 155,777.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,554.11 : 280,871.03 = 112,895.67 : x
  2. Step 2: Convert to fraction form
    203,554.11/280,871.03 = 112,895.67/x
  3. Step 3: Cross multiply
    203,554.11x = 280,871.03 × 112,895.67
  4. Step 4: Simplify right side
    203,554.11x = 31,709,122,550.96
  5. Step 5: Solve for x
    x = 31,709,122,550.96/203,554.11
  6. Step 6: Final answer
    x = 155,777.36

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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.