Home / 116,736.96-161,163.36-77,108.16

Finding the Fourth Proportional to 116,736.96, 161,163.36 and 77,108.16

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Solution

The fourth proportional to 116,736.96, 161,163.36 and 77,108.16 is: 106,453.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,736.96 : 161,163.36 = 77,108.16 : x
  2. Step 2: Convert to fraction form
    116,736.96/161,163.36 = 77,108.16/x
  3. Step 3: Cross multiply
    116,736.96x = 161,163.36 × 77,108.16
  4. Step 4: Simplify right side
    116,736.96x = 12,427,010,149.02
  5. Step 5: Solve for x
    x = 12,427,010,149.02/116,736.96
  6. Step 6: Final answer
    x = 106,453.09

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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.