Home / 203,091.45-280,276.56-112,457.45

Finding the Fourth Proportional to 203,091.45, 280,276.56 and 112,457.45

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Solution

The fourth proportional to 203,091.45, 280,276.56 and 112,457.45 is: 155,197.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,091.45 : 280,276.56 = 112,457.45 : x
  2. Step 2: Convert to fraction form
    203,091.45/280,276.56 = 112,457.45/x
  3. Step 3: Cross multiply
    203,091.45x = 280,276.56 × 112,457.45
  4. Step 4: Simplify right side
    203,091.45x = 31,519,185,830.99
  5. Step 5: Solve for x
    x = 31,519,185,830.99/203,091.45
  6. Step 6: Final answer
    x = 155,197.01

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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.