Home / 156,617.11-216,131.73-84,997.11

Finding the Fourth Proportional to 156,617.11, 216,131.73 and 84,997.11

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Solution

The fourth proportional to 156,617.11, 216,131.73 and 84,997.11 is: 117,296.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,617.11 : 216,131.73 = 84,997.11 : x
  2. Step 2: Convert to fraction form
    156,617.11/216,131.73 = 84,997.11/x
  3. Step 3: Cross multiply
    156,617.11x = 216,131.73 × 84,997.11
  4. Step 4: Simplify right side
    156,617.11x = 18,370,572,921.06
  5. Step 5: Solve for x
    x = 18,370,572,921.06/156,617.11
  6. Step 6: Final answer
    x = 117,296.08

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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.