Home / 117,722.50-176,410.05-69,641.38

Finding the Fourth Proportional to 117,722.50, 176,410.05 and 69,641.38

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Solution

The fourth proportional to 117,722.50, 176,410.05 and 69,641.38 is: 104,359.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,722.50 : 176,410.05 = 69,641.38 : x
  2. Step 2: Convert to fraction form
    117,722.50/176,410.05 = 69,641.38/x
  3. Step 3: Cross multiply
    117,722.50x = 176,410.05 × 69,641.38
  4. Step 4: Simplify right side
    117,722.50x = 12,285,439,327.87
  5. Step 5: Solve for x
    x = 12,285,439,327.87/117,722.50
  6. Step 6: Final answer
    x = 104,359.31

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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.