Home / 123,409.18-170,301.72-69,692.41

Finding the Fourth Proportional to 123,409.18, 170,301.72 and 69,692.41

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Solution

The fourth proportional to 123,409.18, 170,301.72 and 69,692.41 is: 96,173.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,409.18 : 170,301.72 = 69,692.41 : x
  2. Step 2: Convert to fraction form
    123,409.18/170,301.72 = 69,692.41/x
  3. Step 3: Cross multiply
    123,409.18x = 170,301.72 × 69,692.41
  4. Step 4: Simplify right side
    123,409.18x = 11,868,737,293.95
  5. Step 5: Solve for x
    x = 11,868,737,293.95/123,409.18
  6. Step 6: Final answer
    x = 96,173.86

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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.