Home / 117,947.40-162,768.46-64,232.66

Finding the Fourth Proportional to 117,947.40, 162,768.46 and 64,232.66

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Solution

The fourth proportional to 117,947.40, 162,768.46 and 64,232.66 is: 88,641.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,947.40 : 162,768.46 = 64,232.66 : x
  2. Step 2: Convert to fraction form
    117,947.40/162,768.46 = 64,232.66/x
  3. Step 3: Cross multiply
    117,947.40x = 162,768.46 × 64,232.66
  4. Step 4: Simplify right side
    117,947.40x = 10,455,051,149.90
  5. Step 5: Solve for x
    x = 10,455,051,149.90/117,947.40
  6. Step 6: Final answer
    x = 88,641.64

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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.