Home / 135,279.14-186,685.43-74,852.33

Finding the Fourth Proportional to 135,279.14, 186,685.43 and 74,852.33

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Solution

The fourth proportional to 135,279.14, 186,685.43 and 74,852.33 is: 103,296.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,279.14 : 186,685.43 = 74,852.33 : x
  2. Step 2: Convert to fraction form
    135,279.14/186,685.43 = 74,852.33/x
  3. Step 3: Cross multiply
    135,279.14x = 186,685.43 × 74,852.33
  4. Step 4: Simplify right side
    135,279.14x = 13,973,838,104.86
  5. Step 5: Solve for x
    x = 13,973,838,104.86/135,279.14
  6. Step 6: Final answer
    x = 103,296.33

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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.