Home / 203,519.14-280,852.22-112,860.47

Finding the Fourth Proportional to 203,519.14, 280,852.22 and 112,860.47

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Solution

The fourth proportional to 203,519.14, 280,852.22 and 112,860.47 is: 155,745.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,519.14 : 280,852.22 = 112,860.47 : x
  2. Step 2: Convert to fraction form
    203,519.14/280,852.22 = 112,860.47/x
  3. Step 3: Cross multiply
    203,519.14x = 280,852.22 × 112,860.47
  4. Step 4: Simplify right side
    203,519.14x = 31,697,113,549.74
  5. Step 5: Solve for x
    x = 31,697,113,549.74/203,519.14
  6. Step 6: Final answer
    x = 155,745.13

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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.