Home / 190,871.52-285,737.04-115,764

Finding the Fourth Proportional to 190,871.52, 285,737.04 and 115,764

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Solution

The fourth proportional to 190,871.52, 285,737.04 and 115,764 is: 173,300.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,871.52 : 285,737.04 = 115,764 : x
  2. Step 2: Convert to fraction form
    190,871.52/285,737.04 = 115,764/x
  3. Step 3: Cross multiply
    190,871.52x = 285,737.04 × 115,764
  4. Step 4: Simplify right side
    190,871.52x = 33,078,062,698.56
  5. Step 5: Solve for x
    x = 33,078,062,698.56/190,871.52
  6. Step 6: Final answer
    x = 173,300.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.