Home / 156,115.40-215,439.84-84,495.44

Finding the Fourth Proportional to 156,115.40, 215,439.84 and 84,495.44

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Solution

The fourth proportional to 156,115.40, 215,439.84 and 84,495.44 is: 116,604.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,115.40 : 215,439.84 = 84,495.44 : x
  2. Step 2: Convert to fraction form
    156,115.40/215,439.84 = 84,495.44/x
  3. Step 3: Cross multiply
    156,115.40x = 215,439.84 × 84,495.44
  4. Step 4: Simplify right side
    156,115.40x = 18,203,684,074.33
  5. Step 5: Solve for x
    x = 18,203,684,074.33/156,115.40
  6. Step 6: Final answer
    x = 116,604.03

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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.