Home / 107,626.80-161,440.20-68,228.40

Finding the Fourth Proportional to 107,626.80, 161,440.20 and 68,228.40

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Solution

The fourth proportional to 107,626.80, 161,440.20 and 68,228.40 is: 102,342.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,626.80 : 161,440.20 = 68,228.40 : x
  2. Step 2: Convert to fraction form
    107,626.80/161,440.20 = 68,228.40/x
  3. Step 3: Cross multiply
    107,626.80x = 161,440.20 × 68,228.40
  4. Step 4: Simplify right side
    107,626.80x = 11,014,806,541.68
  5. Step 5: Solve for x
    x = 11,014,806,541.68/107,626.80
  6. Step 6: Final answer
    x = 102,342.60

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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.