Home / 156,169.53-215,514.09-84,549.60

Finding the Fourth Proportional to 156,169.53, 215,514.09 and 84,549.60

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Solution

The fourth proportional to 156,169.53, 215,514.09 and 84,549.60 is: 116,678.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,169.53 : 215,514.09 = 84,549.60 : x
  2. Step 2: Convert to fraction form
    156,169.53/215,514.09 = 84,549.60/x
  3. Step 3: Cross multiply
    156,169.53x = 215,514.09 × 84,549.60
  4. Step 4: Simplify right side
    156,169.53x = 18,221,630,103.86
  5. Step 5: Solve for x
    x = 18,221,630,103.86/156,169.53
  6. Step 6: Final answer
    x = 116,678.52

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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.