Home / 120,441.03-166,137.26-72,666.15

Finding the Fourth Proportional to 120,441.03, 166,137.26 and 72,666.15

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Solution

The fourth proportional to 120,441.03, 166,137.26 and 72,666.15 is: 100,236.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,441.03 : 166,137.26 = 72,666.15 : x
  2. Step 2: Convert to fraction form
    120,441.03/166,137.26 = 72,666.15/x
  3. Step 3: Cross multiply
    120,441.03x = 166,137.26 × 72,666.15
  4. Step 4: Simplify right side
    120,441.03x = 12,072,554,692.42
  5. Step 5: Solve for x
    x = 12,072,554,692.42/120,441.03
  6. Step 6: Final answer
    x = 100,236.23

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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.