Home / 190,139.20-285,273.60-57,022.72

Finding the Fourth Proportional to 190,139.20, 285,273.60 and 57,022.72

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Solution

The fourth proportional to 190,139.20, 285,273.60 and 57,022.72 is: 85,553.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,139.20 : 285,273.60 = 57,022.72 : x
  2. Step 2: Convert to fraction form
    190,139.20/285,273.60 = 57,022.72/x
  3. Step 3: Cross multiply
    190,139.20x = 285,273.60 × 57,022.72
  4. Step 4: Simplify right side
    190,139.20x = 16,267,076,616.19
  5. Step 5: Solve for x
    x = 16,267,076,616.19/190,139.20
  6. Step 6: Final answer
    x = 85,553.51

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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.