Home / 152,812.75-229,188.80-76,891.05

Finding the Fourth Proportional to 152,812.75, 229,188.80 and 76,891.05

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Solution

The fourth proportional to 152,812.75, 229,188.80 and 76,891.05 is: 115,321.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,812.75 : 229,188.80 = 76,891.05 : x
  2. Step 2: Convert to fraction form
    152,812.75/229,188.80 = 76,891.05/x
  3. Step 3: Cross multiply
    152,812.75x = 229,188.80 × 76,891.05
  4. Step 4: Simplify right side
    152,812.75x = 17,622,567,480.24
  5. Step 5: Solve for x
    x = 17,622,567,480.24/152,812.75
  6. Step 6: Final answer
    x = 115,321.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.