Home / 115,541.44-159,347.36-75,240

Finding the Fourth Proportional to 115,541.44, 159,347.36 and 75,240

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Solution

The fourth proportional to 115,541.44, 159,347.36 and 75,240 is: 103,766.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,541.44 : 159,347.36 = 75,240 : x
  2. Step 2: Convert to fraction form
    115,541.44/159,347.36 = 75,240/x
  3. Step 3: Cross multiply
    115,541.44x = 159,347.36 × 75,240
  4. Step 4: Simplify right side
    115,541.44x = 11,989,295,366.40
  5. Step 5: Solve for x
    x = 11,989,295,366.40/115,541.44
  6. Step 6: Final answer
    x = 103,766.19

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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.