Home / 203,303.45-280,561.34-112,661.18

Finding the Fourth Proportional to 203,303.45, 280,561.34 and 112,661.18

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Solution

The fourth proportional to 203,303.45, 280,561.34 and 112,661.18 is: 155,473.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,303.45 : 280,561.34 = 112,661.18 : x
  2. Step 2: Convert to fraction form
    203,303.45/280,561.34 = 112,661.18/x
  3. Step 3: Cross multiply
    203,303.45x = 280,561.34 × 112,661.18
  4. Step 4: Simplify right side
    203,303.45x = 31,608,372,609.84
  5. Step 5: Solve for x
    x = 31,608,372,609.84/203,303.45
  6. Step 6: Final answer
    x = 155,473.87

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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.