Home / 189,203.72-261,091.73-107,521.32

Finding the Fourth Proportional to 189,203.72, 261,091.73 and 107,521.32

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Solution

The fourth proportional to 189,203.72, 261,091.73 and 107,521.32 is: 148,374.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,203.72 : 261,091.73 = 107,521.32 : x
  2. Step 2: Convert to fraction form
    189,203.72/261,091.73 = 107,521.32/x
  3. Step 3: Cross multiply
    189,203.72x = 261,091.73 × 107,521.32
  4. Step 4: Simplify right side
    189,203.72x = 28,072,928,396.18
  5. Step 5: Solve for x
    x = 28,072,928,396.18/189,203.72
  6. Step 6: Final answer
    x = 148,374.08

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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.