Home / 145,860.82-201,286.74-81,329.29

Finding the Fourth Proportional to 145,860.82, 201,286.74 and 81,329.29

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Solution

The fourth proportional to 145,860.82, 201,286.74 and 81,329.29 is: 112,233.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,860.82 : 201,286.74 = 81,329.29 : x
  2. Step 2: Convert to fraction form
    145,860.82/201,286.74 = 81,329.29/x
  3. Step 3: Cross multiply
    145,860.82x = 201,286.74 × 81,329.29
  4. Step 4: Simplify right side
    145,860.82x = 16,370,507,650.61
  5. Step 5: Solve for x
    x = 16,370,507,650.61/145,860.82
  6. Step 6: Final answer
    x = 112,233.76

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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.