Home / 118,647.15-163,732.68-64,932.60

Finding the Fourth Proportional to 118,647.15, 163,732.68 and 64,932.60

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Solution

The fourth proportional to 118,647.15, 163,732.68 and 64,932.60 is: 89,606.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,647.15 : 163,732.68 = 64,932.60 : x
  2. Step 2: Convert to fraction form
    118,647.15/163,732.68 = 64,932.60/x
  3. Step 3: Cross multiply
    118,647.15x = 163,732.68 × 64,932.60
  4. Step 4: Simplify right side
    118,647.15x = 10,631,588,617.37
  5. Step 5: Solve for x
    x = 10,631,588,617.37/118,647.15
  6. Step 6: Final answer
    x = 89,606.78

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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.