Home / 130,892.20-196,338.30-68,554.60

Finding the Fourth Proportional to 130,892.20, 196,338.30 and 68,554.60

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Solution

The fourth proportional to 130,892.20, 196,338.30 and 68,554.60 is: 102,831.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,892.20 : 196,338.30 = 68,554.60 : x
  2. Step 2: Convert to fraction form
    130,892.20/196,338.30 = 68,554.60/x
  3. Step 3: Cross multiply
    130,892.20x = 196,338.30 × 68,554.60
  4. Step 4: Simplify right side
    130,892.20x = 13,459,893,621.18
  5. Step 5: Solve for x
    x = 13,459,893,621.18/130,892.20
  6. Step 6: Final answer
    x = 102,831.90

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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.