Home / 116,503.38-174,930.03-66,639.78

Finding the Fourth Proportional to 116,503.38, 174,930.03 and 66,639.78

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Solution

The fourth proportional to 116,503.38, 174,930.03 and 66,639.78 is: 100,059.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,503.38 : 174,930.03 = 66,639.78 : x
  2. Step 2: Convert to fraction form
    116,503.38/174,930.03 = 66,639.78/x
  3. Step 3: Cross multiply
    116,503.38x = 174,930.03 × 66,639.78
  4. Step 4: Simplify right side
    116,503.38x = 11,657,298,714.59
  5. Step 5: Solve for x
    x = 11,657,298,714.59/116,503.38
  6. Step 6: Final answer
    x = 100,059.75

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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.