Home / 120,261.24-165,958.05-66,543.06

Finding the Fourth Proportional to 120,261.24, 165,958.05 and 66,543.06

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Solution

The fourth proportional to 120,261.24, 165,958.05 and 66,543.06 is: 91,828.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,261.24 : 165,958.05 = 66,543.06 : x
  2. Step 2: Convert to fraction form
    120,261.24/165,958.05 = 66,543.06/x
  3. Step 3: Cross multiply
    120,261.24x = 165,958.05 × 66,543.06
  4. Step 4: Simplify right side
    120,261.24x = 11,043,356,478.63
  5. Step 5: Solve for x
    x = 11,043,356,478.63/120,261.24
  6. Step 6: Final answer
    x = 91,828.06

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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.