Home / 133,379.30-199,631.55-103,636.10

Finding the Fourth Proportional to 133,379.30, 199,631.55 and 103,636.10

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Solution

The fourth proportional to 133,379.30, 199,631.55 and 103,636.10 is: 155,114.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,379.30 : 199,631.55 = 103,636.10 : x
  2. Step 2: Convert to fraction form
    133,379.30/199,631.55 = 103,636.10/x
  3. Step 3: Cross multiply
    133,379.30x = 199,631.55 × 103,636.10
  4. Step 4: Simplify right side
    133,379.30x = 20,689,035,278.96
  5. Step 5: Solve for x
    x = 20,689,035,278.96/133,379.30
  6. Step 6: Final answer
    x = 155,114.29

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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.