Home / 156,380.46-215,805.32-84,760.26

Finding the Fourth Proportional to 156,380.46, 215,805.32 and 84,760.26

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Solution

The fourth proportional to 156,380.46, 215,805.32 and 84,760.26 is: 116,969.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,380.46 : 215,805.32 = 84,760.26 : x
  2. Step 2: Convert to fraction form
    156,380.46/215,805.32 = 84,760.26/x
  3. Step 3: Cross multiply
    156,380.46x = 215,805.32 × 84,760.26
  4. Step 4: Simplify right side
    156,380.46x = 18,291,715,032.58
  5. Step 5: Solve for x
    x = 18,291,715,032.58/156,380.46
  6. Step 6: Final answer
    x = 116,969.31

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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.