Home / 83,495.08-114,517.73-78,976.36

Finding the Fourth Proportional to 83,495.08, 114,517.73 and 78,976.36

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Solution

The fourth proportional to 83,495.08, 114,517.73 and 78,976.36 is: 108,320.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,495.08 : 114,517.73 = 78,976.36 : x
  2. Step 2: Convert to fraction form
    83,495.08/114,517.73 = 78,976.36/x
  3. Step 3: Cross multiply
    83,495.08x = 114,517.73 × 78,976.36
  4. Step 4: Simplify right side
    83,495.08x = 9,044,193,470.86
  5. Step 5: Solve for x
    x = 9,044,193,470.86/83,495.08
  6. Step 6: Final answer
    x = 108,320.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.