Home / 118,904.40-163,965.60-83,081.34

Finding the Fourth Proportional to 118,904.40, 163,965.60 and 83,081.34

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Solution

The fourth proportional to 118,904.40, 163,965.60 and 83,081.34 is: 114,566.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,904.40 : 163,965.60 = 83,081.34 : x
  2. Step 2: Convert to fraction form
    118,904.40/163,965.60 = 83,081.34/x
  3. Step 3: Cross multiply
    118,904.40x = 163,965.60 × 83,081.34
  4. Step 4: Simplify right side
    118,904.40x = 13,622,481,761.90
  5. Step 5: Solve for x
    x = 13,622,481,761.90/118,904.40
  6. Step 6: Final answer
    x = 114,566.68

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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.