Home / 203,365.40-280,661.06-112,749.80

Finding the Fourth Proportional to 203,365.40, 280,661.06 and 112,749.80

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Solution

The fourth proportional to 203,365.40, 280,661.06 and 112,749.80 is: 155,604.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,365.40 : 280,661.06 = 112,749.80 : x
  2. Step 2: Convert to fraction form
    203,365.40/280,661.06 = 112,749.80/x
  3. Step 3: Cross multiply
    203,365.40x = 280,661.06 × 112,749.80
  4. Step 4: Simplify right side
    203,365.40x = 31,644,478,382.79
  5. Step 5: Solve for x
    x = 31,644,478,382.79/203,365.40
  6. Step 6: Final answer
    x = 155,604.04

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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.