Home / 190,572.36-285,800.02-131,785.80

Finding the Fourth Proportional to 190,572.36, 285,800.02 and 131,785.80

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Solution

The fourth proportional to 190,572.36, 285,800.02 and 131,785.80 is: 197,638.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,572.36 : 285,800.02 = 131,785.80 : x
  2. Step 2: Convert to fraction form
    190,572.36/285,800.02 = 131,785.80/x
  3. Step 3: Cross multiply
    190,572.36x = 285,800.02 × 131,785.80
  4. Step 4: Simplify right side
    190,572.36x = 37,664,384,275.72
  5. Step 5: Solve for x
    x = 37,664,384,275.72/190,572.36
  6. Step 6: Final answer
    x = 197,638.23

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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.