Home / 140,067.90-193,309.82-77,984.64

Finding the Fourth Proportional to 140,067.90, 193,309.82 and 77,984.64

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Solution

The fourth proportional to 140,067.90, 193,309.82 and 77,984.64 is: 107,627.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,067.90 : 193,309.82 = 77,984.64 : x
  2. Step 2: Convert to fraction form
    140,067.90/193,309.82 = 77,984.64/x
  3. Step 3: Cross multiply
    140,067.90x = 193,309.82 × 77,984.64
  4. Step 4: Simplify right side
    140,067.90x = 15,075,196,331.24
  5. Step 5: Solve for x
    x = 15,075,196,331.24/140,067.90
  6. Step 6: Final answer
    x = 107,627.77

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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.