Home / 135,257.71-186,657.60-77,907.33

Finding the Fourth Proportional to 135,257.71, 186,657.60 and 77,907.33

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Solution

The fourth proportional to 135,257.71, 186,657.60 and 77,907.33 is: 107,513.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,257.71 : 186,657.60 = 77,907.33 : x
  2. Step 2: Convert to fraction form
    135,257.71/186,657.60 = 77,907.33/x
  3. Step 3: Cross multiply
    135,257.71x = 186,657.60 × 77,907.33
  4. Step 4: Simplify right side
    135,257.71x = 14,541,994,374.43
  5. Step 5: Solve for x
    x = 14,541,994,374.43/135,257.71
  6. Step 6: Final answer
    x = 107,513.24

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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.