Home / 133,488.20-199,940.70-103,672.10

Finding the Fourth Proportional to 133,488.20, 199,940.70 and 103,672.10

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Solution

The fourth proportional to 133,488.20, 199,940.70 and 103,672.10 is: 155,281.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,488.20 : 199,940.70 = 103,672.10 : x
  2. Step 2: Convert to fraction form
    133,488.20/199,940.70 = 103,672.10/x
  3. Step 3: Cross multiply
    133,488.20x = 199,940.70 × 103,672.10
  4. Step 4: Simplify right side
    133,488.20x = 20,728,272,244.47
  5. Step 5: Solve for x
    x = 20,728,272,244.47/133,488.20
  6. Step 6: Final answer
    x = 155,281.68

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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.