Home / 130,668.62-180,300.83-76,964.33

Finding the Fourth Proportional to 130,668.62, 180,300.83 and 76,964.33

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Solution

The fourth proportional to 130,668.62, 180,300.83 and 76,964.33 is: 106,197.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,668.62 : 180,300.83 = 76,964.33 : x
  2. Step 2: Convert to fraction form
    130,668.62/180,300.83 = 76,964.33/x
  3. Step 3: Cross multiply
    130,668.62x = 180,300.83 × 76,964.33
  4. Step 4: Simplify right side
    130,668.62x = 13,876,732,208.36
  5. Step 5: Solve for x
    x = 13,876,732,208.36/130,668.62
  6. Step 6: Final answer
    x = 106,197.90

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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.