Home / 135,690.82-187,252.08-75,261.58

Finding the Fourth Proportional to 135,690.82, 187,252.08 and 75,261.58

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Solution

The fourth proportional to 135,690.82, 187,252.08 and 75,261.58 is: 103,860.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,690.82 : 187,252.08 = 75,261.58 : x
  2. Step 2: Convert to fraction form
    135,690.82/187,252.08 = 75,261.58/x
  3. Step 3: Cross multiply
    135,690.82x = 187,252.08 × 75,261.58
  4. Step 4: Simplify right side
    135,690.82x = 14,092,887,399.09
  5. Step 5: Solve for x
    x = 14,092,887,399.09/135,690.82
  6. Step 6: Final answer
    x = 103,860.29

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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.