Home / 358,821.60-538,135.20-106,101.60

Finding the Fourth Proportional to 358,821.60, 538,135.20 and 106,101.60

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Solution

The fourth proportional to 358,821.60, 538,135.20 and 106,101.60 is: 159,123.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,821.60 : 538,135.20 = 106,101.60 : x
  2. Step 2: Convert to fraction form
    358,821.60/538,135.20 = 106,101.60/x
  3. Step 3: Cross multiply
    358,821.60x = 538,135.20 × 106,101.60
  4. Step 4: Simplify right side
    358,821.60x = 57,097,005,736.32
  5. Step 5: Solve for x
    x = 57,097,005,736.32/358,821.60
  6. Step 6: Final answer
    x = 159,123.66

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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.