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Finding the Fourth Proportional to 117,642.94, 162,346.88 and 63,928.12

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Solution

The fourth proportional to 117,642.94, 162,346.88 and 63,928.12 is: 88,220.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,642.94 : 162,346.88 = 63,928.12 : x
  2. Step 2: Convert to fraction form
    117,642.94/162,346.88 = 63,928.12/x
  3. Step 3: Cross multiply
    117,642.94x = 162,346.88 × 63,928.12
  4. Step 4: Simplify right side
    117,642.94x = 10,378,530,826.27
  5. Step 5: Solve for x
    x = 10,378,530,826.27/117,642.94
  6. Step 6: Final answer
    x = 88,220.60

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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.