Home / 118,877.82-164,051.08-71,131.15

Finding the Fourth Proportional to 118,877.82, 164,051.08 and 71,131.15

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Solution

The fourth proportional to 118,877.82, 164,051.08 and 71,131.15 is: 98,160.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,877.82 : 164,051.08 = 71,131.15 : x
  2. Step 2: Convert to fraction form
    118,877.82/164,051.08 = 71,131.15/x
  3. Step 3: Cross multiply
    118,877.82x = 164,051.08 × 71,131.15
  4. Step 4: Simplify right side
    118,877.82x = 11,669,141,979.14
  5. Step 5: Solve for x
    x = 11,669,141,979.14/118,877.82
  6. Step 6: Final answer
    x = 98,160.80

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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.