Home / 190,179.36-285,113.52-71,783.28

Finding the Fourth Proportional to 190,179.36, 285,113.52 and 71,783.28

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Solution

The fourth proportional to 190,179.36, 285,113.52 and 71,783.28 is: 107,616.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,179.36 : 285,113.52 = 71,783.28 : x
  2. Step 2: Convert to fraction form
    190,179.36/285,113.52 = 71,783.28/x
  3. Step 3: Cross multiply
    190,179.36x = 285,113.52 × 71,783.28
  4. Step 4: Simplify right side
    190,179.36x = 20,466,383,637.95
  5. Step 5: Solve for x
    x = 20,466,383,637.95/190,179.36
  6. Step 6: Final answer
    x = 107,616.22

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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.