Home / 118,431.27-163,428.27-64,716.73

Finding the Fourth Proportional to 118,431.27, 163,428.27 and 64,716.73

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Solution

The fourth proportional to 118,431.27, 163,428.27 and 64,716.73 is: 89,305.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,431.27 : 163,428.27 = 64,716.73 : x
  2. Step 2: Convert to fraction form
    118,431.27/163,428.27 = 64,716.73/x
  3. Step 3: Cross multiply
    118,431.27x = 163,428.27 × 64,716.73
  4. Step 4: Simplify right side
    118,431.27x = 10,576,542,572.70
  5. Step 5: Solve for x
    x = 10,576,542,572.70/118,431.27
  6. Step 6: Final answer
    x = 89,305.32

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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.