Home / 115,261.97-159,056.60-85,036.41

Finding the Fourth Proportional to 115,261.97, 159,056.60 and 85,036.41

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Solution

The fourth proportional to 115,261.97, 159,056.60 and 85,036.41 is: 117,346.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,261.97 : 159,056.60 = 85,036.41 : x
  2. Step 2: Convert to fraction form
    115,261.97/159,056.60 = 85,036.41/x
  3. Step 3: Cross multiply
    115,261.97x = 159,056.60 × 85,036.41
  4. Step 4: Simplify right side
    115,261.97x = 13,525,601,825.62
  5. Step 5: Solve for x
    x = 13,525,601,825.62/115,261.97
  6. Step 6: Final answer
    x = 117,346.62

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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.