Home / 156,074.40-215,382.24-84,455.64

Finding the Fourth Proportional to 156,074.40, 215,382.24 and 84,455.64

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Solution

The fourth proportional to 156,074.40, 215,382.24 and 84,455.64 is: 116,548.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,074.40 : 215,382.24 = 84,455.64 : x
  2. Step 2: Convert to fraction form
    156,074.40/215,382.24 = 84,455.64/x
  3. Step 3: Cross multiply
    156,074.40x = 215,382.24 × 84,455.64
  4. Step 4: Simplify right side
    156,074.40x = 18,190,244,923.83
  5. Step 5: Solve for x
    x = 18,190,244,923.83/156,074.40
  6. Step 6: Final answer
    x = 116,548.55

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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.