Home / 120,278.36-165,977.26-66,560.18

Finding the Fourth Proportional to 120,278.36, 165,977.26 and 66,560.18

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Solution

The fourth proportional to 120,278.36, 165,977.26 and 66,560.18 is: 91,849.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,278.36 : 165,977.26 = 66,560.18 : x
  2. Step 2: Convert to fraction form
    120,278.36/165,977.26 = 66,560.18/x
  3. Step 3: Cross multiply
    120,278.36x = 165,977.26 × 66,560.18
  4. Step 4: Simplify right side
    120,278.36x = 11,047,475,305.22
  5. Step 5: Solve for x
    x = 11,047,475,305.22/120,278.36
  6. Step 6: Final answer
    x = 91,849.23

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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.