Home / 107,690.40-161,151.60-68,266.40

Finding the Fourth Proportional to 107,690.40, 161,151.60 and 68,266.40

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Solution

The fourth proportional to 107,690.40, 161,151.60 and 68,266.40 is: 102,156.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,690.40 : 161,151.60 = 68,266.40 : x
  2. Step 2: Convert to fraction form
    107,690.40/161,151.60 = 68,266.40/x
  3. Step 3: Cross multiply
    107,690.40x = 161,151.60 × 68,266.40
  4. Step 4: Simplify right side
    107,690.40x = 11,001,239,586.24
  5. Step 5: Solve for x
    x = 11,001,239,586.24/107,690.40
  6. Step 6: Final answer
    x = 102,156.18

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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.