Home / 156,714.44-215,774.24-138,298.55

Finding the Fourth Proportional to 156,714.44, 215,774.24 and 138,298.55

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Solution

The fourth proportional to 156,714.44, 215,774.24 and 138,298.55 is: 190,418.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,714.44 : 215,774.24 = 138,298.55 : x
  2. Step 2: Convert to fraction form
    156,714.44/215,774.24 = 138,298.55/x
  3. Step 3: Cross multiply
    156,714.44x = 215,774.24 × 138,298.55
  4. Step 4: Simplify right side
    156,714.44x = 29,841,262,748.99
  5. Step 5: Solve for x
    x = 29,841,262,748.99/156,714.44
  6. Step 6: Final answer
    x = 190,418.09

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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.