Home / 120,525.77-166,308.08-66,810.75

Finding the Fourth Proportional to 120,525.77, 166,308.08 and 66,810.75

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Solution

The fourth proportional to 120,525.77, 166,308.08 and 66,810.75 is: 92,189.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,525.77 : 166,308.08 = 66,810.75 : x
  2. Step 2: Convert to fraction form
    120,525.77/166,308.08 = 66,810.75/x
  3. Step 3: Cross multiply
    120,525.77x = 166,308.08 × 66,810.75
  4. Step 4: Simplify right side
    120,525.77x = 11,111,167,221.81
  5. Step 5: Solve for x
    x = 11,111,167,221.81/120,525.77
  6. Step 6: Final answer
    x = 92,189.14

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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.