Home / 145,660.41-201,030.53-82,010.61

Finding the Fourth Proportional to 145,660.41, 201,030.53 and 82,010.61

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Solution

The fourth proportional to 145,660.41, 201,030.53 and 82,010.61 is: 113,185.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,660.41 : 201,030.53 = 82,010.61 : x
  2. Step 2: Convert to fraction form
    145,660.41/201,030.53 = 82,010.61/x
  3. Step 3: Cross multiply
    145,660.41x = 201,030.53 × 82,010.61
  4. Step 4: Simplify right side
    145,660.41x = 16,486,635,983.87
  5. Step 5: Solve for x
    x = 16,486,635,983.87/145,660.41
  6. Step 6: Final answer
    x = 113,185.43

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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.