Home / 189,165.72-261,050.52-104,285.88

Finding the Fourth Proportional to 189,165.72, 261,050.52 and 104,285.88

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Solution

The fourth proportional to 189,165.72, 261,050.52 and 104,285.88 is: 143,915.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,165.72 : 261,050.52 = 104,285.88 : x
  2. Step 2: Convert to fraction form
    189,165.72/261,050.52 = 104,285.88/x
  3. Step 3: Cross multiply
    189,165.72x = 261,050.52 × 104,285.88
  4. Step 4: Simplify right side
    189,165.72x = 27,223,883,202.66
  5. Step 5: Solve for x
    x = 27,223,883,202.66/189,165.72
  6. Step 6: Final answer
    x = 143,915.52

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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.