Home / 120,555.57-166,366.44-66,839.22

Finding the Fourth Proportional to 120,555.57, 166,366.44 and 66,839.22

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Solution

The fourth proportional to 120,555.57, 166,366.44 and 66,839.22 is: 92,237.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,555.57 : 166,366.44 = 66,839.22 : x
  2. Step 2: Convert to fraction form
    120,555.57/166,366.44 = 66,839.22/x
  3. Step 3: Cross multiply
    120,555.57x = 166,366.44 × 66,839.22
  4. Step 4: Simplify right side
    120,555.57x = 11,119,803,083.78
  5. Step 5: Solve for x
    x = 11,119,803,083.78/120,555.57
  6. Step 6: Final answer
    x = 92,237.99

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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.