Home / 156,200.08-215,555.79-84,580.30

Finding the Fourth Proportional to 156,200.08, 215,555.79 and 84,580.30

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Solution

The fourth proportional to 156,200.08, 215,555.79 and 84,580.30 is: 116,720.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,200.08 : 215,555.79 = 84,580.30 : x
  2. Step 2: Convert to fraction form
    156,200.08/215,555.79 = 84,580.30/x
  3. Step 3: Cross multiply
    156,200.08x = 215,555.79 × 84,580.30
  4. Step 4: Simplify right side
    156,200.08x = 18,231,773,384.94
  5. Step 5: Solve for x
    x = 18,231,773,384.94/156,200.08
  6. Step 6: Final answer
    x = 116,720.64

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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.