Home / 120,786.21-166,689.81-69,797.25

Finding the Fourth Proportional to 120,786.21, 166,689.81 and 69,797.25

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Solution

The fourth proportional to 120,786.21, 166,689.81 and 69,797.25 is: 96,323.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,786.21 : 166,689.81 = 69,797.25 : x
  2. Step 2: Convert to fraction form
    120,786.21/166,689.81 = 69,797.25/x
  3. Step 3: Cross multiply
    120,786.21x = 166,689.81 × 69,797.25
  4. Step 4: Simplify right side
    120,786.21x = 11,634,490,341.02
  5. Step 5: Solve for x
    x = 11,634,490,341.02/120,786.21
  6. Step 6: Final answer
    x = 96,323.00

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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.