Home / 120,315.25-166,033.01-66,599.11

Finding the Fourth Proportional to 120,315.25, 166,033.01 and 66,599.11

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Solution

The fourth proportional to 120,315.25, 166,033.01 and 66,599.11 is: 91,905.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,315.25 : 166,033.01 = 66,599.11 : x
  2. Step 2: Convert to fraction form
    120,315.25/166,033.01 = 66,599.11/x
  3. Step 3: Cross multiply
    120,315.25x = 166,033.01 × 66,599.11
  4. Step 4: Simplify right side
    120,315.25x = 11,057,650,448.04
  5. Step 5: Solve for x
    x = 11,057,650,448.04/120,315.25
  6. Step 6: Final answer
    x = 91,905.65

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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.