Home / 113,690.20-156,776.01-75,436.33

Finding the Fourth Proportional to 113,690.20, 156,776.01 and 75,436.33

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Solution

The fourth proportional to 113,690.20, 156,776.01 and 75,436.33 is: 104,024.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,690.20 : 156,776.01 = 75,436.33 : x
  2. Step 2: Convert to fraction form
    113,690.20/156,776.01 = 75,436.33/x
  3. Step 3: Cross multiply
    113,690.20x = 156,776.01 × 75,436.33
  4. Step 4: Simplify right side
    113,690.20x = 11,826,606,826.44
  5. Step 5: Solve for x
    x = 11,826,606,826.44/113,690.20
  6. Step 6: Final answer
    x = 104,024.86

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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.