Home / 120,785.46-166,699.32-73,039.15

Finding the Fourth Proportional to 120,785.46, 166,699.32 and 73,039.15

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Solution

The fourth proportional to 120,785.46, 166,699.32 and 73,039.15 is: 100,803.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,785.46 : 166,699.32 = 73,039.15 : x
  2. Step 2: Convert to fraction form
    120,785.46/166,699.32 = 73,039.15/x
  3. Step 3: Cross multiply
    120,785.46x = 166,699.32 × 73,039.15
  4. Step 4: Simplify right side
    120,785.46x = 12,175,576,273.18
  5. Step 5: Solve for x
    x = 12,175,576,273.18/120,785.46
  6. Step 6: Final answer
    x = 100,803.33

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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.