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Finding the Fourth Proportional to 115,393.45, 159,117.41 and 75,032.36

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Solution

The fourth proportional to 115,393.45, 159,117.41 and 75,032.36 is: 103,463.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,393.45 : 159,117.41 = 75,032.36 : x
  2. Step 2: Convert to fraction form
    115,393.45/159,117.41 = 75,032.36/x
  3. Step 3: Cross multiply
    115,393.45x = 159,117.41 × 75,032.36
  4. Step 4: Simplify right side
    115,393.45x = 11,938,955,449.35
  5. Step 5: Solve for x
    x = 11,938,955,449.35/115,393.45
  6. Step 6: Final answer
    x = 103,463.03

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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.