Home / 203,499.31-280,829.13-112,856.37

Finding the Fourth Proportional to 203,499.31, 280,829.13 and 112,856.37

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Solution

The fourth proportional to 203,499.31, 280,829.13 and 112,856.37 is: 155,741.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,499.31 : 280,829.13 = 112,856.37 : x
  2. Step 2: Convert to fraction form
    203,499.31/280,829.13 = 112,856.37/x
  3. Step 3: Cross multiply
    203,499.31x = 280,829.13 × 112,856.37
  4. Step 4: Simplify right side
    203,499.31x = 31,693,356,202.06
  5. Step 5: Solve for x
    x = 31,693,356,202.06/203,499.31
  6. Step 6: Final answer
    x = 155,741.84

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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.