Home / 190,616.02-285,738.08-90,749.38

Finding the Fourth Proportional to 190,616.02, 285,738.08 and 90,749.38

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Solution

The fourth proportional to 190,616.02, 285,738.08 and 90,749.38 is: 136,035.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,616.02 : 285,738.08 = 90,749.38 : x
  2. Step 2: Convert to fraction form
    190,616.02/285,738.08 = 90,749.38/x
  3. Step 3: Cross multiply
    190,616.02x = 285,738.08 × 90,749.38
  4. Step 4: Simplify right side
    190,616.02x = 25,930,553,602.39
  5. Step 5: Solve for x
    x = 25,930,553,602.39/190,616.02
  6. Step 6: Final answer
    x = 136,035.54

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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.