Home / 120,216.16-165,896.88-66,496.96

Finding the Fourth Proportional to 120,216.16, 165,896.88 and 66,496.96

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Solution

The fourth proportional to 120,216.16, 165,896.88 and 66,496.96 is: 91,765.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,216.16 : 165,896.88 = 66,496.96 : x
  2. Step 2: Convert to fraction form
    120,216.16/165,896.88 = 66,496.96/x
  3. Step 3: Cross multiply
    120,216.16x = 165,896.88 × 66,496.96
  4. Step 4: Simplify right side
    120,216.16x = 11,031,638,193.48
  5. Step 5: Solve for x
    x = 11,031,638,193.48/120,216.16
  6. Step 6: Final answer
    x = 91,765.02

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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.