Home / 190,631.24-285,760.93-90,764.61

Finding the Fourth Proportional to 190,631.24, 285,760.93 and 90,764.61

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Solution

The fourth proportional to 190,631.24, 285,760.93 and 90,764.61 is: 136,058.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,631.24 : 285,760.93 = 90,764.61 : x
  2. Step 2: Convert to fraction form
    190,631.24/285,760.93 = 90,764.61/x
  3. Step 3: Cross multiply
    190,631.24x = 285,760.93 × 90,764.61
  4. Step 4: Simplify right side
    190,631.24x = 25,936,979,364.69
  5. Step 5: Solve for x
    x = 25,936,979,364.69/190,631.24
  6. Step 6: Final answer
    x = 136,058.39

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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.