Home / 120,918.56-166,777.08-73,110.74

Finding the Fourth Proportional to 120,918.56, 166,777.08 and 73,110.74

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Solution

The fourth proportional to 120,918.56, 166,777.08 and 73,110.74 is: 100,838.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,918.56 : 166,777.08 = 73,110.74 : x
  2. Step 2: Convert to fraction form
    120,918.56/166,777.08 = 73,110.74/x
  3. Step 3: Cross multiply
    120,918.56x = 166,777.08 × 73,110.74
  4. Step 4: Simplify right side
    120,918.56x = 12,193,195,733.84
  5. Step 5: Solve for x
    x = 12,193,195,733.84/120,918.56
  6. Step 6: Final answer
    x = 100,838.08

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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.