Home / 229,143.09-343,632.61-79,343.15

Finding the Fourth Proportional to 229,143.09, 343,632.61 and 79,343.15

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Solution

The fourth proportional to 229,143.09, 343,632.61 and 79,343.15 is: 118,986.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,143.09 : 343,632.61 = 79,343.15 : x
  2. Step 2: Convert to fraction form
    229,143.09/343,632.61 = 79,343.15/x
  3. Step 3: Cross multiply
    229,143.09x = 343,632.61 × 79,343.15
  4. Step 4: Simplify right side
    229,143.09x = 27,264,893,720.12
  5. Step 5: Solve for x
    x = 27,264,893,720.12/229,143.09
  6. Step 6: Final answer
    x = 118,986.32

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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.