Home / 120,506.81-166,309.35-66,808.67

Finding the Fourth Proportional to 120,506.81, 166,309.35 and 66,808.67

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Solution

The fourth proportional to 120,506.81, 166,309.35 and 66,808.67 is: 92,201.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,506.81 : 166,309.35 = 66,808.67 : x
  2. Step 2: Convert to fraction form
    120,506.81/166,309.35 = 66,808.67/x
  3. Step 3: Cross multiply
    120,506.81x = 166,309.35 × 66,808.67
  4. Step 4: Simplify right side
    120,506.81x = 11,110,906,482.06
  5. Step 5: Solve for x
    x = 11,110,906,482.06/120,506.81
  6. Step 6: Final answer
    x = 92,201.48

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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.