Home / 190,253.64-285,383.25-90,424.02

Finding the Fourth Proportional to 190,253.64, 285,383.25 and 90,424.02

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Solution

The fourth proportional to 190,253.64, 285,383.25 and 90,424.02 is: 135,637.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,253.64 : 285,383.25 = 90,424.02 : x
  2. Step 2: Convert to fraction form
    190,253.64/285,383.25 = 90,424.02/x
  3. Step 3: Cross multiply
    190,253.64x = 285,383.25 × 90,424.02
  4. Step 4: Simplify right side
    190,253.64x = 25,805,500,705.67
  5. Step 5: Solve for x
    x = 25,805,500,705.67/190,253.64
  6. Step 6: Final answer
    x = 135,637.36

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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.