Home / 117,876.20-176,699.10-105,434.60

Finding the Fourth Proportional to 117,876.20, 176,699.10 and 105,434.60

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Solution

The fourth proportional to 117,876.20, 176,699.10 and 105,434.60 is: 158,048.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,876.20 : 176,699.10 = 105,434.60 : x
  2. Step 2: Convert to fraction form
    117,876.20/176,699.10 = 105,434.60/x
  3. Step 3: Cross multiply
    117,876.20x = 176,699.10 × 105,434.60
  4. Step 4: Simplify right side
    117,876.20x = 18,630,198,928.86
  5. Step 5: Solve for x
    x = 18,630,198,928.86/117,876.20
  6. Step 6: Final answer
    x = 158,048.86

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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.