Home / 102,973.36-142,101.88-57,651.48

Finding the Fourth Proportional to 102,973.36, 142,101.88 and 57,651.48

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Solution

The fourth proportional to 102,973.36, 142,101.88 and 57,651.48 is: 79,558.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,973.36 : 142,101.88 = 57,651.48 : x
  2. Step 2: Convert to fraction form
    102,973.36/142,101.88 = 57,651.48/x
  3. Step 3: Cross multiply
    102,973.36x = 142,101.88 × 57,651.48
  4. Step 4: Simplify right side
    102,973.36x = 8,192,383,692.78
  5. Step 5: Solve for x
    x = 8,192,383,692.78/102,973.36
  6. Step 6: Final answer
    x = 79,558.28

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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.