Home / 189,135.75-261,007.34-104,254.64

Finding the Fourth Proportional to 189,135.75, 261,007.34 and 104,254.64

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Solution

The fourth proportional to 189,135.75, 261,007.34 and 104,254.64 is: 143,871.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,135.75 : 261,007.34 = 104,254.64 : x
  2. Step 2: Convert to fraction form
    189,135.75/261,007.34 = 104,254.64/x
  3. Step 3: Cross multiply
    189,135.75x = 261,007.34 × 104,254.64
  4. Step 4: Simplify right side
    189,135.75x = 27,211,224,442.75
  5. Step 5: Solve for x
    x = 27,211,224,442.75/189,135.75
  6. Step 6: Final answer
    x = 143,871.40

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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.