Home / 190,179.10-285,202.95-55,206.57

Finding the Fourth Proportional to 190,179.10, 285,202.95 and 55,206.57

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Solution

The fourth proportional to 190,179.10, 285,202.95 and 55,206.57 is: 82,790.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,179.10 : 285,202.95 = 55,206.57 : x
  2. Step 2: Convert to fraction form
    190,179.10/285,202.95 = 55,206.57/x
  3. Step 3: Cross multiply
    190,179.10x = 285,202.95 × 55,206.57
  4. Step 4: Simplify right side
    190,179.10x = 15,745,077,401.82
  5. Step 5: Solve for x
    x = 15,745,077,401.82/190,179.10
  6. Step 6: Final answer
    x = 82,790.79

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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.