Home / 116,879.80-161,293.74-66,587.32

Finding the Fourth Proportional to 116,879.80, 161,293.74 and 66,587.32

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Solution

The fourth proportional to 116,879.80, 161,293.74 and 66,587.32 is: 91,890.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,879.80 : 161,293.74 = 66,587.32 : x
  2. Step 2: Convert to fraction form
    116,879.80/161,293.74 = 66,587.32/x
  3. Step 3: Cross multiply
    116,879.80x = 161,293.74 × 66,587.32
  4. Step 4: Simplify right side
    116,879.80x = 10,740,117,879.38
  5. Step 5: Solve for x
    x = 10,740,117,879.38/116,879.80
  6. Step 6: Final answer
    x = 91,890.28

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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.