Home / 115,823.60-159,816-68,086.64

Finding the Fourth Proportional to 115,823.60, 159,816 and 68,086.64

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Solution

The fourth proportional to 115,823.60, 159,816 and 68,086.64 is: 93,947.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,823.60 : 159,816 = 68,086.64 : x
  2. Step 2: Convert to fraction form
    115,823.60/159,816 = 68,086.64/x
  3. Step 3: Cross multiply
    115,823.60x = 159,816 × 68,086.64
  4. Step 4: Simplify right side
    115,823.60x = 10,881,334,458.24
  5. Step 5: Solve for x
    x = 10,881,334,458.24/115,823.60
  6. Step 6: Final answer
    x = 93,947.47

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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.