Home / 107,926.90-161,890.35-81,682.90

Finding the Fourth Proportional to 107,926.90, 161,890.35 and 81,682.90

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Solution

The fourth proportional to 107,926.90, 161,890.35 and 81,682.90 is: 122,524.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,926.90 : 161,890.35 = 81,682.90 : x
  2. Step 2: Convert to fraction form
    107,926.90/161,890.35 = 81,682.90/x
  3. Step 3: Cross multiply
    107,926.90x = 161,890.35 × 81,682.90
  4. Step 4: Simplify right side
    107,926.90x = 13,223,673,270.02
  5. Step 5: Solve for x
    x = 13,223,673,270.02/107,926.90
  6. Step 6: Final answer
    x = 122,524.35

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1.5x scale

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.