Home / 127,924.20-191,886.30-68,787.72

Finding the Fourth Proportional to 127,924.20, 191,886.30 and 68,787.72

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Solution

The fourth proportional to 127,924.20, 191,886.30 and 68,787.72 is: 103,181.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,924.20 : 191,886.30 = 68,787.72 : x
  2. Step 2: Convert to fraction form
    127,924.20/191,886.30 = 68,787.72/x
  3. Step 3: Cross multiply
    127,924.20x = 191,886.30 × 68,787.72
  4. Step 4: Simplify right side
    127,924.20x = 13,199,421,076.24
  5. Step 5: Solve for x
    x = 13,199,421,076.24/127,924.20
  6. Step 6: Final answer
    x = 103,181.58

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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.