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Finding the Fourth Proportional to 117,454.63, 162,087.50 and 63,739.65

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Solution

The fourth proportional to 117,454.63, 162,087.50 and 63,739.65 is: 87,960.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,454.63 : 162,087.50 = 63,739.65 : x
  2. Step 2: Convert to fraction form
    117,454.63/162,087.50 = 63,739.65/x
  3. Step 3: Cross multiply
    117,454.63x = 162,087.50 × 63,739.65
  4. Step 4: Simplify right side
    117,454.63x = 10,331,400,519.38
  5. Step 5: Solve for x
    x = 10,331,400,519.38/117,454.63
  6. Step 6: Final answer
    x = 87,960.78

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1.5x scale

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.