Home / 189,787.50-261,907.07-104,904.57

Finding the Fourth Proportional to 189,787.50, 261,907.07 and 104,904.57

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Solution

The fourth proportional to 189,787.50, 261,907.07 and 104,904.57 is: 144,768.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,787.50 : 261,907.07 = 104,904.57 : x
  2. Step 2: Convert to fraction form
    189,787.50/261,907.07 = 104,904.57/x
  3. Step 3: Cross multiply
    189,787.50x = 261,907.07 × 104,904.57
  4. Step 4: Simplify right side
    189,787.50x = 27,475,248,033.79
  5. Step 5: Solve for x
    x = 27,475,248,033.79/189,787.50
  6. Step 6: Final answer
    x = 144,768.48

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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.