Home / 120,816.80-166,720.08-67,098.68

Finding the Fourth Proportional to 120,816.80, 166,720.08 and 67,098.68

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Solution

The fourth proportional to 120,816.80, 166,720.08 and 67,098.68 is: 92,592.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,816.80 : 166,720.08 = 67,098.68 : x
  2. Step 2: Convert to fraction form
    120,816.80/166,720.08 = 67,098.68/x
  3. Step 3: Cross multiply
    120,816.80x = 166,720.08 × 67,098.68
  4. Step 4: Simplify right side
    120,816.80x = 11,186,697,297.49
  5. Step 5: Solve for x
    x = 11,186,697,297.49/120,816.80
  6. Step 6: Final answer
    x = 92,592.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.