Home / 116,906.09-161,329.52-91,438.47

Finding the Fourth Proportional to 116,906.09, 161,329.52 and 91,438.47

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Solution

The fourth proportional to 116,906.09, 161,329.52 and 91,438.47 is: 126,184.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,906.09 : 161,329.52 = 91,438.47 : x
  2. Step 2: Convert to fraction form
    116,906.09/161,329.52 = 91,438.47/x
  3. Step 3: Cross multiply
    116,906.09x = 161,329.52 × 91,438.47
  4. Step 4: Simplify right side
    116,906.09x = 14,751,724,703.23
  5. Step 5: Solve for x
    x = 14,751,724,703.23/116,906.09
  6. Step 6: Final answer
    x = 126,184.40

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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.