Home / 123,668.84-170,802.06-83,311.94

Finding the Fourth Proportional to 123,668.84, 170,802.06 and 83,311.94

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Solution

The fourth proportional to 123,668.84, 170,802.06 and 83,311.94 is: 115,064.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,668.84 : 170,802.06 = 83,311.94 : x
  2. Step 2: Convert to fraction form
    123,668.84/170,802.06 = 83,311.94/x
  3. Step 3: Cross multiply
    123,668.84x = 170,802.06 × 83,311.94
  4. Step 4: Simplify right side
    123,668.84x = 14,229,850,974.60
  5. Step 5: Solve for x
    x = 14,229,850,974.60/123,668.84
  6. Step 6: Final answer
    x = 115,064.16

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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.