Home / 118,338.21-163,305.65-64,623.06

Finding the Fourth Proportional to 118,338.21, 163,305.65 and 64,623.06

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Solution

The fourth proportional to 118,338.21, 163,305.65 and 64,623.06 is: 89,179.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,338.21 : 163,305.65 = 64,623.06 : x
  2. Step 2: Convert to fraction form
    118,338.21/163,305.65 = 64,623.06/x
  3. Step 3: Cross multiply
    118,338.21x = 163,305.65 × 64,623.06
  4. Step 4: Simplify right side
    118,338.21x = 10,553,310,979.85
  5. Step 5: Solve for x
    x = 10,553,310,979.85/118,338.21
  6. Step 6: Final answer
    x = 89,179.23

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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.