Home / 229,145.09-343,635.61-79,345.15

Finding the Fourth Proportional to 229,145.09, 343,635.61 and 79,345.15

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Solution

The fourth proportional to 229,145.09, 343,635.61 and 79,345.15 is: 118,989.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,145.09 : 343,635.61 = 79,345.15 : x
  2. Step 2: Convert to fraction form
    229,145.09/343,635.61 = 79,345.15/x
  3. Step 3: Cross multiply
    229,145.09x = 343,635.61 × 79,345.15
  4. Step 4: Simplify right side
    229,145.09x = 27,265,819,020.79
  5. Step 5: Solve for x
    x = 27,265,819,020.79/229,145.09
  6. Step 6: Final answer
    x = 118,989.32

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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.