Home / 103,422.58-142,739.76-96,668.84

Finding the Fourth Proportional to 103,422.58, 142,739.76 and 96,668.84

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Solution

The fourth proportional to 103,422.58, 142,739.76 and 96,668.84 is: 133,418.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,422.58 : 142,739.76 = 96,668.84 : x
  2. Step 2: Convert to fraction form
    103,422.58/142,739.76 = 96,668.84/x
  3. Step 3: Cross multiply
    103,422.58x = 142,739.76 × 96,668.84
  4. Step 4: Simplify right side
    103,422.58x = 13,798,487,740.44
  5. Step 5: Solve for x
    x = 13,798,487,740.44/103,422.58
  6. Step 6: Final answer
    x = 133,418.52

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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.