Home / 111,331.40-166,997.10-74,006.60

Finding the Fourth Proportional to 111,331.40, 166,997.10 and 74,006.60

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Solution

The fourth proportional to 111,331.40, 166,997.10 and 74,006.60 is: 111,009.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,331.40 : 166,997.10 = 74,006.60 : x
  2. Step 2: Convert to fraction form
    111,331.40/166,997.10 = 74,006.60/x
  3. Step 3: Cross multiply
    111,331.40x = 166,997.10 × 74,006.60
  4. Step 4: Simplify right side
    111,331.40x = 12,358,887,580.86
  5. Step 5: Solve for x
    x = 12,358,887,580.86/111,331.40
  6. Step 6: Final answer
    x = 111,009.90

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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.