Home / 135,167.34-186,514.64-74,729.82

Finding the Fourth Proportional to 135,167.34, 186,514.64 and 74,729.82

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Solution

The fourth proportional to 135,167.34, 186,514.64 and 74,729.82 is: 103,118.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,167.34 : 186,514.64 = 74,729.82 : x
  2. Step 2: Convert to fraction form
    135,167.34/186,514.64 = 74,729.82/x
  3. Step 3: Cross multiply
    135,167.34x = 186,514.64 × 74,729.82
  4. Step 4: Simplify right side
    135,167.34x = 13,938,205,474.56
  5. Step 5: Solve for x
    x = 13,938,205,474.56/135,167.34
  6. Step 6: Final answer
    x = 103,118.15

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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.