Home / 129,833.54-179,200.17-76,135.85

Finding the Fourth Proportional to 129,833.54, 179,200.17 and 76,135.85

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Solution

The fourth proportional to 129,833.54, 179,200.17 and 76,135.85 is: 105,085.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,833.54 : 179,200.17 = 76,135.85 : x
  2. Step 2: Convert to fraction form
    129,833.54/179,200.17 = 76,135.85/x
  3. Step 3: Cross multiply
    129,833.54x = 179,200.17 × 76,135.85
  4. Step 4: Simplify right side
    129,833.54x = 13,643,558,047.10
  5. Step 5: Solve for x
    x = 13,643,558,047.10/129,833.54
  6. Step 6: Final answer
    x = 105,085.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.