Home / 203,009.22-280,145.57-112,365.36

Finding the Fourth Proportional to 203,009.22, 280,145.57 and 112,365.36

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Solution

The fourth proportional to 203,009.22, 280,145.57 and 112,365.36 is: 155,060.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,009.22 : 280,145.57 = 112,365.36 : x
  2. Step 2: Convert to fraction form
    203,009.22/280,145.57 = 112,365.36/x
  3. Step 3: Cross multiply
    203,009.22x = 280,145.57 × 112,365.36
  4. Step 4: Simplify right side
    203,009.22x = 31,478,656,705.64
  5. Step 5: Solve for x
    x = 31,478,656,705.64/203,009.22
  6. Step 6: Final answer
    x = 155,060.24

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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.