Home / 115,845.20-173,476.20-76,187.60

Finding the Fourth Proportional to 115,845.20, 173,476.20 and 76,187.60

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Solution

The fourth proportional to 115,845.20, 173,476.20 and 76,187.60 is: 114,089.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,845.20 : 173,476.20 = 76,187.60 : x
  2. Step 2: Convert to fraction form
    115,845.20/173,476.20 = 76,187.60/x
  3. Step 3: Cross multiply
    115,845.20x = 173,476.20 × 76,187.60
  4. Step 4: Simplify right side
    115,845.20x = 13,216,735,335.12
  5. Step 5: Solve for x
    x = 13,216,735,335.12/115,845.20
  6. Step 6: Final answer
    x = 114,089.62

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1.5x scale

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.