Home / 156,149.85-215,485.32-84,528.03

Finding the Fourth Proportional to 156,149.85, 215,485.32 and 84,528.03

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Solution

The fourth proportional to 156,149.85, 215,485.32 and 84,528.03 is: 116,647.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,149.85 : 215,485.32 = 84,528.03 : x
  2. Step 2: Convert to fraction form
    156,149.85/215,485.32 = 84,528.03/x
  3. Step 3: Cross multiply
    156,149.85x = 215,485.32 × 84,528.03
  4. Step 4: Simplify right side
    156,149.85x = 18,214,549,593.52
  5. Step 5: Solve for x
    x = 18,214,549,593.52/156,149.85
  6. Step 6: Final answer
    x = 116,647.88

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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.