Home / 103,015.34-142,170.22-57,692.60

Finding the Fourth Proportional to 103,015.34, 142,170.22 and 57,692.60

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Solution

The fourth proportional to 103,015.34, 142,170.22 and 57,692.60 is: 79,620.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,015.34 : 142,170.22 = 57,692.60 : x
  2. Step 2: Convert to fraction form
    103,015.34/142,170.22 = 57,692.60/x
  3. Step 3: Cross multiply
    103,015.34x = 142,170.22 × 57,692.60
  4. Step 4: Simplify right side
    103,015.34x = 8,202,169,634.37
  5. Step 5: Solve for x
    x = 8,202,169,634.37/103,015.34
  6. Step 6: Final answer
    x = 79,620.86

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1.5x scale

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.