Home / 103,372.13-142,668.97-63,109.23

Finding the Fourth Proportional to 103,372.13, 142,668.97 and 63,109.23

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Solution

The fourth proportional to 103,372.13, 142,668.97 and 63,109.23 is: 87,100.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,372.13 : 142,668.97 = 63,109.23 : x
  2. Step 2: Convert to fraction form
    103,372.13/142,668.97 = 63,109.23/x
  3. Step 3: Cross multiply
    103,372.13x = 142,668.97 × 63,109.23
  4. Step 4: Simplify right side
    103,372.13x = 9,003,729,530.08
  5. Step 5: Solve for x
    x = 9,003,729,530.08/103,372.13
  6. Step 6: Final answer
    x = 87,100.16

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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.