Home / 107,811.10-161,716.65-82,899.10

Finding the Fourth Proportional to 107,811.10, 161,716.65 and 82,899.10

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Solution

The fourth proportional to 107,811.10, 161,716.65 and 82,899.10 is: 124,348.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,811.10 : 161,716.65 = 82,899.10 : x
  2. Step 2: Convert to fraction form
    107,811.10/161,716.65 = 82,899.10/x
  3. Step 3: Cross multiply
    107,811.10x = 161,716.65 × 82,899.10
  4. Step 4: Simplify right side
    107,811.10x = 13,406,164,740.02
  5. Step 5: Solve for x
    x = 13,406,164,740.02/107,811.10
  6. Step 6: Final answer
    x = 124,348.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.