Home / 120,479.14-166,265.52-72,723.16

Finding the Fourth Proportional to 120,479.14, 166,265.52 and 72,723.16

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Solution

The fourth proportional to 120,479.14, 166,265.52 and 72,723.16 is: 100,360.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,479.14 : 166,265.52 = 72,723.16 : x
  2. Step 2: Convert to fraction form
    120,479.14/166,265.52 = 72,723.16/x
  3. Step 3: Cross multiply
    120,479.14x = 166,265.52 × 72,723.16
  4. Step 4: Simplify right side
    120,479.14x = 12,091,354,013.44
  5. Step 5: Solve for x
    x = 12,091,354,013.44/120,479.14
  6. Step 6: Final answer
    x = 100,360.56

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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.