Home / 190,205.31-285,201.08-130,301.33

Finding the Fourth Proportional to 190,205.31, 285,201.08 and 130,301.33

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Solution

The fourth proportional to 190,205.31, 285,201.08 and 130,301.33 is: 195,378.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,205.31 : 285,201.08 = 130,301.33 : x
  2. Step 2: Convert to fraction form
    190,205.31/285,201.08 = 130,301.33/x
  3. Step 3: Cross multiply
    190,205.31x = 285,201.08 × 130,301.33
  4. Step 4: Simplify right side
    190,205.31x = 37,162,077,963.92
  5. Step 5: Solve for x
    x = 37,162,077,963.92/190,205.31
  6. Step 6: Final answer
    x = 195,378.77

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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.