Home / 107,446.20-161,010.90-77,926.20

Finding the Fourth Proportional to 107,446.20, 161,010.90 and 77,926.20

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Solution

The fourth proportional to 107,446.20, 161,010.90 and 77,926.20 is: 116,774.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,446.20 : 161,010.90 = 77,926.20 : x
  2. Step 2: Convert to fraction form
    107,446.20/161,010.90 = 77,926.20/x
  3. Step 3: Cross multiply
    107,446.20x = 161,010.90 × 77,926.20
  4. Step 4: Simplify right side
    107,446.20x = 12,546,967,595.58
  5. Step 5: Solve for x
    x = 12,546,967,595.58/107,446.20
  6. Step 6: Final answer
    x = 116,774.42

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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.