Home / 120,661.15-166,536.62-69,682.18

Finding the Fourth Proportional to 120,661.15, 166,536.62 and 69,682.18

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Solution

The fourth proportional to 120,661.15, 166,536.62 and 69,682.18 is: 96,175.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,661.15 : 166,536.62 = 69,682.18 : x
  2. Step 2: Convert to fraction form
    120,661.15/166,536.62 = 69,682.18/x
  3. Step 3: Cross multiply
    120,661.15x = 166,536.62 × 69,682.18
  4. Step 4: Simplify right side
    120,661.15x = 11,604,634,383.02
  5. Step 5: Solve for x
    x = 11,604,634,383.02/120,661.15
  6. Step 6: Final answer
    x = 96,175.40

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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.