Home / 115,014.60-158,716.26-64,703.88

Finding the Fourth Proportional to 115,014.60, 158,716.26 and 64,703.88

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Solution

The fourth proportional to 115,014.60, 158,716.26 and 64,703.88 is: 89,289.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,014.60 : 158,716.26 = 64,703.88 : x
  2. Step 2: Convert to fraction form
    115,014.60/158,716.26 = 64,703.88/x
  3. Step 3: Cross multiply
    115,014.60x = 158,716.26 × 64,703.88
  4. Step 4: Simplify right side
    115,014.60x = 10,269,557,841.09
  5. Step 5: Solve for x
    x = 10,269,557,841.09/115,014.60
  6. Step 6: Final answer
    x = 89,289.17

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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.