Home / 156,110.88-215,431.32-84,489.36

Finding the Fourth Proportional to 156,110.88, 215,431.32 and 84,489.36

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Solution

The fourth proportional to 156,110.88, 215,431.32 and 84,489.36 is: 116,594.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,110.88 : 215,431.32 = 84,489.36 : x
  2. Step 2: Convert to fraction form
    156,110.88/215,431.32 = 84,489.36/x
  3. Step 3: Cross multiply
    156,110.88x = 215,431.32 × 84,489.36
  4. Step 4: Simplify right side
    156,110.88x = 18,201,654,350.76
  5. Step 5: Solve for x
    x = 18,201,654,350.76/156,110.88
  6. Step 6: Final answer
    x = 116,594.40

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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.