Home / 115,930.10-173,895.15-112,649.60

Finding the Fourth Proportional to 115,930.10, 173,895.15 and 112,649.60

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Solution

The fourth proportional to 115,930.10, 173,895.15 and 112,649.60 is: 168,974.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,930.10 : 173,895.15 = 112,649.60 : x
  2. Step 2: Convert to fraction form
    115,930.10/173,895.15 = 112,649.60/x
  3. Step 3: Cross multiply
    115,930.10x = 173,895.15 × 112,649.60
  4. Step 4: Simplify right side
    115,930.10x = 19,589,219,089.44
  5. Step 5: Solve for x
    x = 19,589,219,089.44/115,930.10
  6. Step 6: Final answer
    x = 168,974.40

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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.