Home / 120,313.90-166,031.16-66,597.76

Finding the Fourth Proportional to 120,313.90, 166,031.16 and 66,597.76

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Solution

The fourth proportional to 120,313.90, 166,031.16 and 66,597.76 is: 91,903.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,313.90 : 166,031.16 = 66,597.76 : x
  2. Step 2: Convert to fraction form
    120,313.90/166,031.16 = 66,597.76/x
  3. Step 3: Cross multiply
    120,313.90x = 166,031.16 × 66,597.76
  4. Step 4: Simplify right side
    120,313.90x = 11,057,302,516.05
  5. Step 5: Solve for x
    x = 11,057,302,516.05/120,313.90
  6. Step 6: Final answer
    x = 91,903.79

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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.