Home / 120,060.46-165,681.06-66,344.32

Finding the Fourth Proportional to 120,060.46, 165,681.06 and 66,344.32

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Solution

The fourth proportional to 120,060.46, 165,681.06 and 66,344.32 is: 91,553.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,060.46 : 165,681.06 = 66,344.32 : x
  2. Step 2: Convert to fraction form
    120,060.46/165,681.06 = 66,344.32/x
  3. Step 3: Cross multiply
    120,060.46x = 165,681.06 × 66,344.32
  4. Step 4: Simplify right side
    120,060.46x = 10,991,997,262.58
  5. Step 5: Solve for x
    x = 10,991,997,262.58/120,060.46
  6. Step 6: Final answer
    x = 91,553.85

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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.