Home / 120,895.80-166,788.44-69,899.20

Finding the Fourth Proportional to 120,895.80, 166,788.44 and 69,899.20

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Solution

The fourth proportional to 120,895.80, 166,788.44 and 69,899.20 is: 96,433.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,895.80 : 166,788.44 = 69,899.20 : x
  2. Step 2: Convert to fraction form
    120,895.80/166,788.44 = 69,899.20/x
  3. Step 3: Cross multiply
    120,895.80x = 166,788.44 × 69,899.20
  4. Step 4: Simplify right side
    120,895.80x = 11,658,378,525.25
  5. Step 5: Solve for x
    x = 11,658,378,525.25/120,895.80
  6. Step 6: Final answer
    x = 96,433.28

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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.