Home / 83,343.83-125,166.33-76,668.03

Finding the Fourth Proportional to 83,343.83, 125,166.33 and 76,668.03

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Solution

The fourth proportional to 83,343.83, 125,166.33 and 76,668.03 is: 115,140.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,343.83 : 125,166.33 = 76,668.03 : x
  2. Step 2: Convert to fraction form
    83,343.83/125,166.33 = 76,668.03/x
  3. Step 3: Cross multiply
    83,343.83x = 125,166.33 × 76,668.03
  4. Step 4: Simplify right side
    83,343.83x = 9,596,255,943.43
  5. Step 5: Solve for x
    x = 9,596,255,943.43/83,343.83
  6. Step 6: Final answer
    x = 115,140.58

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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.