Home / 156,110.25-215,431.74-84,490.26

Finding the Fourth Proportional to 156,110.25, 215,431.74 and 84,490.26

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Solution

The fourth proportional to 156,110.25, 215,431.74 and 84,490.26 is: 116,596.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,110.25 : 215,431.74 = 84,490.26 : x
  2. Step 2: Convert to fraction form
    156,110.25/215,431.74 = 84,490.26/x
  3. Step 3: Cross multiply
    156,110.25x = 215,431.74 × 84,490.26
  4. Step 4: Simplify right side
    156,110.25x = 18,201,883,724.85
  5. Step 5: Solve for x
    x = 18,201,883,724.85/156,110.25
  6. Step 6: Final answer
    x = 116,596.34

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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.