Home / 127,025.84-190,257.24-86,949.20

Finding the Fourth Proportional to 127,025.84, 190,257.24 and 86,949.20

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Solution

The fourth proportional to 127,025.84, 190,257.24 and 86,949.20 is: 130,231.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,025.84 : 190,257.24 = 86,949.20 : x
  2. Step 2: Convert to fraction form
    127,025.84/190,257.24 = 86,949.20/x
  3. Step 3: Cross multiply
    127,025.84x = 190,257.24 × 86,949.20
  4. Step 4: Simplify right side
    127,025.84x = 16,542,714,812.21
  5. Step 5: Solve for x
    x = 16,542,714,812.21/127,025.84
  6. Step 6: Final answer
    x = 130,231.10

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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.