Home / 120,368.06-166,105.88-66,651.92

Finding the Fourth Proportional to 120,368.06, 166,105.88 and 66,651.92

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Solution

The fourth proportional to 120,368.06, 166,105.88 and 66,651.92 is: 91,978.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,368.06 : 166,105.88 = 66,651.92 : x
  2. Step 2: Convert to fraction form
    120,368.06/166,105.88 = 66,651.92/x
  3. Step 3: Cross multiply
    120,368.06x = 166,105.88 × 66,651.92
  4. Step 4: Simplify right side
    120,368.06x = 11,071,276,656.15
  5. Step 5: Solve for x
    x = 11,071,276,656.15/120,368.06
  6. Step 6: Final answer
    x = 91,978.52

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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.