Home / 165,787.32-248,486.21-76,853.64

Finding the Fourth Proportional to 165,787.32, 248,486.21 and 76,853.64

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Solution

The fourth proportional to 165,787.32, 248,486.21 and 76,853.64 is: 115,190.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,787.32 : 248,486.21 = 76,853.64 : x
  2. Step 2: Convert to fraction form
    165,787.32/248,486.21 = 76,853.64/x
  3. Step 3: Cross multiply
    165,787.32x = 248,486.21 × 76,853.64
  4. Step 4: Simplify right side
    165,787.32x = 19,097,069,344.04
  5. Step 5: Solve for x
    x = 19,097,069,344.04/165,787.32
  6. Step 6: Final answer
    x = 115,190.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.