Home / 156,218.11-215,580.56-84,598.11

Finding the Fourth Proportional to 156,218.11, 215,580.56 and 84,598.11

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Solution

The fourth proportional to 156,218.11, 215,580.56 and 84,598.11 is: 116,745.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,218.11 : 215,580.56 = 84,598.11 : x
  2. Step 2: Convert to fraction form
    156,218.11/215,580.56 = 84,598.11/x
  3. Step 3: Cross multiply
    156,218.11x = 215,580.56 × 84,598.11
  4. Step 4: Simplify right side
    156,218.11x = 18,237,707,822.99
  5. Step 5: Solve for x
    x = 18,237,707,822.99/156,218.11
  6. Step 6: Final answer
    x = 116,745.16

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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.