Home / 111,118.10-166,677.15-81,593.60

Finding the Fourth Proportional to 111,118.10, 166,677.15 and 81,593.60

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Solution

The fourth proportional to 111,118.10, 166,677.15 and 81,593.60 is: 122,390.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,118.10 : 166,677.15 = 81,593.60 : x
  2. Step 2: Convert to fraction form
    111,118.10/166,677.15 = 81,593.60/x
  3. Step 3: Cross multiply
    111,118.10x = 166,677.15 × 81,593.60
  4. Step 4: Simplify right side
    111,118.10x = 13,599,788,706.24
  5. Step 5: Solve for x
    x = 13,599,788,706.24/111,118.10
  6. Step 6: Final answer
    x = 122,390.40

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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.