Home / 120,785.32-166,678.17-67,073.77

Finding the Fourth Proportional to 120,785.32, 166,678.17 and 67,073.77

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Solution

The fourth proportional to 120,785.32, 166,678.17 and 67,073.77 is: 92,558.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,785.32 : 166,678.17 = 67,073.77 : x
  2. Step 2: Convert to fraction form
    120,785.32/166,678.17 = 67,073.77/x
  3. Step 3: Cross multiply
    120,785.32x = 166,678.17 × 67,073.77
  4. Step 4: Simplify right side
    120,785.32x = 11,179,732,405.21
  5. Step 5: Solve for x
    x = 11,179,732,405.21/120,785.32
  6. Step 6: Final answer
    x = 92,558.71

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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.