Home / 103,653.48-143,040.07-58,331.41

Finding the Fourth Proportional to 103,653.48, 143,040.07 and 58,331.41

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Solution

The fourth proportional to 103,653.48, 143,040.07 and 58,331.41 is: 80,496.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,653.48 : 143,040.07 = 58,331.41 : x
  2. Step 2: Convert to fraction form
    103,653.48/143,040.07 = 58,331.41/x
  3. Step 3: Cross multiply
    103,653.48x = 143,040.07 × 58,331.41
  4. Step 4: Simplify right side
    103,653.48x = 8,343,728,969.60
  5. Step 5: Solve for x
    x = 8,343,728,969.60/103,653.48
  6. Step 6: Final answer
    x = 80,496.37

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1.5x scale

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.