Home / 120,246.64-165,945.27-66,530.80

Finding the Fourth Proportional to 120,246.64, 165,945.27 and 66,530.80

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Solution

The fourth proportional to 120,246.64, 165,945.27 and 66,530.80 is: 91,815.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,246.64 : 165,945.27 = 66,530.80 : x
  2. Step 2: Convert to fraction form
    120,246.64/165,945.27 = 66,530.80/x
  3. Step 3: Cross multiply
    120,246.64x = 165,945.27 × 66,530.80
  4. Step 4: Simplify right side
    120,246.64x = 11,040,471,569.32
  5. Step 5: Solve for x
    x = 11,040,471,569.32/120,246.64
  6. Step 6: Final answer
    x = 91,815.22

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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.