Home / 118,699.13-163,799.87-64,982.81

Finding the Fourth Proportional to 118,699.13, 163,799.87 and 64,982.81

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Solution

The fourth proportional to 118,699.13, 163,799.87 and 64,982.81 is: 89,673.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,699.13 : 163,799.87 = 64,982.81 : x
  2. Step 2: Convert to fraction form
    118,699.13/163,799.87 = 64,982.81/x
  3. Step 3: Cross multiply
    118,699.13x = 163,799.87 × 64,982.81
  4. Step 4: Simplify right side
    118,699.13x = 10,644,175,505.32
  5. Step 5: Solve for x
    x = 10,644,175,505.32/118,699.13
  6. Step 6: Final answer
    x = 89,673.58

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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.