Home / 118,077.20-177,115.80-64,933.10

Finding the Fourth Proportional to 118,077.20, 177,115.80 and 64,933.10

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Solution

The fourth proportional to 118,077.20, 177,115.80 and 64,933.10 is: 97,399.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,077.20 : 177,115.80 = 64,933.10 : x
  2. Step 2: Convert to fraction form
    118,077.20/177,115.80 = 64,933.10/x
  3. Step 3: Cross multiply
    118,077.20x = 177,115.80 × 64,933.10
  4. Step 4: Simplify right side
    118,077.20x = 11,500,677,952.98
  5. Step 5: Solve for x
    x = 11,500,677,952.98/118,077.20
  6. Step 6: Final answer
    x = 97,399.65

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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.