Home / 120,391.13-166,140.32-66,675.02

Finding the Fourth Proportional to 120,391.13, 166,140.32 and 66,675.02

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Solution

The fourth proportional to 120,391.13, 166,140.32 and 66,675.02 is: 92,011.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,391.13 : 166,140.32 = 66,675.02 : x
  2. Step 2: Convert to fraction form
    120,391.13/166,140.32 = 66,675.02/x
  3. Step 3: Cross multiply
    120,391.13x = 166,140.32 × 66,675.02
  4. Step 4: Simplify right side
    120,391.13x = 11,077,407,994.73
  5. Step 5: Solve for x
    x = 11,077,407,994.73/120,391.13
  6. Step 6: Final answer
    x = 92,011.83

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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.