Home / 103,020.36-142,156.32-57,692.04

Finding the Fourth Proportional to 103,020.36, 142,156.32 and 57,692.04

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Solution

The fourth proportional to 103,020.36, 142,156.32 and 57,692.04 is: 79,608.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,020.36 : 142,156.32 = 57,692.04 : x
  2. Step 2: Convert to fraction form
    103,020.36/142,156.32 = 57,692.04/x
  3. Step 3: Cross multiply
    103,020.36x = 142,156.32 × 57,692.04
  4. Step 4: Simplify right side
    103,020.36x = 8,201,288,099.69
  5. Step 5: Solve for x
    x = 8,201,288,099.69/103,020.36
  6. Step 6: Final answer
    x = 79,608.42

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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.