Home / 190,585.80-263,056.25-129,435.48

Finding the Fourth Proportional to 190,585.80, 263,056.25 and 129,435.48

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Solution

The fourth proportional to 190,585.80, 263,056.25 and 129,435.48 is: 178,653.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,585.80 : 263,056.25 = 129,435.48 : x
  2. Step 2: Convert to fraction form
    190,585.80/263,056.25 = 129,435.48/x
  3. Step 3: Cross multiply
    190,585.80x = 263,056.25 × 129,435.48
  4. Step 4: Simplify right side
    190,585.80x = 34,048,812,309.34
  5. Step 5: Solve for x
    x = 34,048,812,309.34/190,585.80
  6. Step 6: Final answer
    x = 178,653.46

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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.