Home / 186,423.40-279,635.10-68,098.60

Finding the Fourth Proportional to 186,423.40, 279,635.10 and 68,098.60

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Solution

The fourth proportional to 186,423.40, 279,635.10 and 68,098.60 is: 102,147.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,423.40 : 279,635.10 = 68,098.60 : x
  2. Step 2: Convert to fraction form
    186,423.40/279,635.10 = 68,098.60/x
  3. Step 3: Cross multiply
    186,423.40x = 279,635.10 × 68,098.60
  4. Step 4: Simplify right side
    186,423.40x = 19,042,758,820.86
  5. Step 5: Solve for x
    x = 19,042,758,820.86/186,423.40
  6. Step 6: Final answer
    x = 102,147.90

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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.