Home / 156,218.26-215,581.20-84,598.28

Finding the Fourth Proportional to 156,218.26, 215,581.20 and 84,598.28

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Solution

The fourth proportional to 156,218.26, 215,581.20 and 84,598.28 is: 116,745.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,218.26 : 215,581.20 = 84,598.28 : x
  2. Step 2: Convert to fraction form
    156,218.26/215,581.20 = 84,598.28/x
  3. Step 3: Cross multiply
    156,218.26x = 215,581.20 × 84,598.28
  4. Step 4: Simplify right side
    156,218.26x = 18,237,798,720.34
  5. Step 5: Solve for x
    x = 18,237,798,720.34/156,218.26
  6. Step 6: Final answer
    x = 116,745.63

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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.