Home / 133,342.20-200,159.10-103,890.60

Finding the Fourth Proportional to 133,342.20, 200,159.10 and 103,890.60

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Solution

The fourth proportional to 133,342.20, 200,159.10 and 103,890.60 is: 155,949.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,342.20 : 200,159.10 = 103,890.60 : x
  2. Step 2: Convert to fraction form
    133,342.20/200,159.10 = 103,890.60/x
  3. Step 3: Cross multiply
    133,342.20x = 200,159.10 × 103,890.60
  4. Step 4: Simplify right side
    133,342.20x = 20,794,648,994.46
  5. Step 5: Solve for x
    x = 20,794,648,994.46/133,342.20
  6. Step 6: Final answer
    x = 155,949.50

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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.