Home / 120,259.17-165,955.28-66,546.45

Finding the Fourth Proportional to 120,259.17, 165,955.28 and 66,546.45

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Solution

The fourth proportional to 120,259.17, 165,955.28 and 66,546.45 is: 91,832.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,259.17 : 165,955.28 = 66,546.45 : x
  2. Step 2: Convert to fraction form
    120,259.17/165,955.28 = 66,546.45/x
  3. Step 3: Cross multiply
    120,259.17x = 165,955.28 × 66,546.45
  4. Step 4: Simplify right side
    120,259.17x = 11,043,734,410.02
  5. Step 5: Solve for x
    x = 11,043,734,410.02/120,259.17
  6. Step 6: Final answer
    x = 91,832.78

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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.