Home / 190,395.85-285,139.80-110,264.51

Finding the Fourth Proportional to 190,395.85, 285,139.80 and 110,264.51

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Solution

The fourth proportional to 190,395.85, 285,139.80 and 110,264.51 is: 165,133.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,395.85 : 285,139.80 = 110,264.51 : x
  2. Step 2: Convert to fraction form
    190,395.85/285,139.80 = 110,264.51/x
  3. Step 3: Cross multiply
    190,395.85x = 285,139.80 × 110,264.51
  4. Step 4: Simplify right side
    190,395.85x = 31,440,800,328.50
  5. Step 5: Solve for x
    x = 31,440,800,328.50/190,395.85
  6. Step 6: Final answer
    x = 165,133.85

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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.