Home / 190,688.45-263,040.68-118,943.87

Finding the Fourth Proportional to 190,688.45, 263,040.68 and 118,943.87

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Solution

The fourth proportional to 190,688.45, 263,040.68 and 118,943.87 is: 164,074.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,688.45 : 263,040.68 = 118,943.87 : x
  2. Step 2: Convert to fraction form
    190,688.45/263,040.68 = 118,943.87/x
  3. Step 3: Cross multiply
    190,688.45x = 263,040.68 × 118,943.87
  4. Step 4: Simplify right side
    190,688.45x = 31,287,074,536.71
  5. Step 5: Solve for x
    x = 31,287,074,536.71/190,688.45
  6. Step 6: Final answer
    x = 164,074.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.