Home / 186,724.88-257,596.96-115,078.76

Finding the Fourth Proportional to 186,724.88, 257,596.96 and 115,078.76

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Solution

The fourth proportional to 186,724.88, 257,596.96 and 115,078.76 is: 158,757.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,724.88 : 257,596.96 = 115,078.76 : x
  2. Step 2: Convert to fraction form
    186,724.88/257,596.96 = 115,078.76/x
  3. Step 3: Cross multiply
    186,724.88x = 257,596.96 × 115,078.76
  4. Step 4: Simplify right side
    186,724.88x = 29,643,938,736.57
  5. Step 5: Solve for x
    x = 29,643,938,736.57/186,724.88
  6. Step 6: Final answer
    x = 158,757.31

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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.