Home / 156,174.08-215,520.32-84,554.12

Finding the Fourth Proportional to 156,174.08, 215,520.32 and 84,554.12

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Solution

The fourth proportional to 156,174.08, 215,520.32 and 84,554.12 is: 116,684.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,174.08 : 215,520.32 = 84,554.12 : x
  2. Step 2: Convert to fraction form
    156,174.08/215,520.32 = 84,554.12/x
  3. Step 3: Cross multiply
    156,174.08x = 215,520.32 × 84,554.12
  4. Step 4: Simplify right side
    156,174.08x = 18,223,130,999.72
  5. Step 5: Solve for x
    x = 18,223,130,999.72/156,174.08
  6. Step 6: Final answer
    x = 116,684.73

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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.