Home / 131,025.60-196,246.80-68,623.20

Finding the Fourth Proportional to 131,025.60, 196,246.80 and 68,623.20

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Solution

The fourth proportional to 131,025.60, 196,246.80 and 68,623.20 is: 102,782.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,025.60 : 196,246.80 = 68,623.20 : x
  2. Step 2: Convert to fraction form
    131,025.60/196,246.80 = 68,623.20/x
  3. Step 3: Cross multiply
    131,025.60x = 196,246.80 × 68,623.20
  4. Step 4: Simplify right side
    131,025.60x = 13,467,083,405.76
  5. Step 5: Solve for x
    x = 13,467,083,405.76/131,025.60
  6. Step 6: Final answer
    x = 102,782.08

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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.