Home / 135,265.06-186,550.71-81,538.84

Finding the Fourth Proportional to 135,265.06, 186,550.71 and 81,538.84

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Solution

The fourth proportional to 135,265.06, 186,550.71 and 81,538.84 is: 112,454.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,265.06 : 186,550.71 = 81,538.84 : x
  2. Step 2: Convert to fraction form
    135,265.06/186,550.71 = 81,538.84/x
  3. Step 3: Cross multiply
    135,265.06x = 186,550.71 × 81,538.84
  4. Step 4: Simplify right side
    135,265.06x = 15,211,128,494.58
  5. Step 5: Solve for x
    x = 15,211,128,494.58/135,265.06
  6. Step 6: Final answer
    x = 112,454.23

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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.