Home / 107,852.40-161,778.60-68,486.40

Finding the Fourth Proportional to 107,852.40, 161,778.60 and 68,486.40

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Solution

The fourth proportional to 107,852.40, 161,778.60 and 68,486.40 is: 102,729.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,852.40 : 161,778.60 = 68,486.40 : x
  2. Step 2: Convert to fraction form
    107,852.40/161,778.60 = 68,486.40/x
  3. Step 3: Cross multiply
    107,852.40x = 161,778.60 × 68,486.40
  4. Step 4: Simplify right side
    107,852.40x = 11,079,633,911.04
  5. Step 5: Solve for x
    x = 11,079,633,911.04/107,852.40
  6. Step 6: Final answer
    x = 102,729.60

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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.