Home / 120,995.12-166,976.16-67,282.40

Finding the Fourth Proportional to 120,995.12, 166,976.16 and 67,282.40

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Solution

The fourth proportional to 120,995.12, 166,976.16 and 67,282.40 is: 92,851.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,995.12 : 166,976.16 = 67,282.40 : x
  2. Step 2: Convert to fraction form
    120,995.12/166,976.16 = 67,282.40/x
  3. Step 3: Cross multiply
    120,995.12x = 166,976.16 × 67,282.40
  4. Step 4: Simplify right side
    120,995.12x = 11,234,556,787.58
  5. Step 5: Solve for x
    x = 11,234,556,787.58/120,995.12
  6. Step 6: Final answer
    x = 92,851.32

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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.