Home / 115,880.58-173,504.76-87,715.26

Finding the Fourth Proportional to 115,880.58, 173,504.76 and 87,715.26

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Solution

The fourth proportional to 115,880.58, 173,504.76 and 87,715.26 is: 131,333.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,880.58 : 173,504.76 = 87,715.26 : x
  2. Step 2: Convert to fraction form
    115,880.58/173,504.76 = 87,715.26/x
  3. Step 3: Cross multiply
    115,880.58x = 173,504.76 × 87,715.26
  4. Step 4: Simplify right side
    115,880.58x = 15,219,014,267.11
  5. Step 5: Solve for x
    x = 15,219,014,267.11/115,880.58
  6. Step 6: Final answer
    x = 131,333.61

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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.