Home / 115,651.20-173,406.40-45,446.40

Finding the Fourth Proportional to 115,651.20, 173,406.40 and 45,446.40

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Solution

The fourth proportional to 115,651.20, 173,406.40 and 45,446.40 is: 68,141.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,651.20 : 173,406.40 = 45,446.40 : x
  2. Step 2: Convert to fraction form
    115,651.20/173,406.40 = 45,446.40/x
  3. Step 3: Cross multiply
    115,651.20x = 173,406.40 × 45,446.40
  4. Step 4: Simplify right side
    115,651.20x = 7,880,696,616.96
  5. Step 5: Solve for x
    x = 7,880,696,616.96/115,651.20
  6. Step 6: Final answer
    x = 68,141.94

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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.