Home / 118,791.81-163,932.69-71,045.16

Finding the Fourth Proportional to 118,791.81, 163,932.69 and 71,045.16

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Solution

The fourth proportional to 118,791.81, 163,932.69 and 71,045.16 is: 98,042.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,791.81 : 163,932.69 = 71,045.16 : x
  2. Step 2: Convert to fraction form
    118,791.81/163,932.69 = 71,045.16/x
  3. Step 3: Cross multiply
    118,791.81x = 163,932.69 × 71,045.16
  4. Step 4: Simplify right side
    118,791.81x = 11,646,623,841.95
  5. Step 5: Solve for x
    x = 11,646,623,841.95/118,791.81
  6. Step 6: Final answer
    x = 98,042.31

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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.