Home / 120,557.10-166,368.52-66,840.73

Finding the Fourth Proportional to 120,557.10, 166,368.52 and 66,840.73

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Solution

The fourth proportional to 120,557.10, 166,368.52 and 66,840.73 is: 92,240.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,557.10 : 166,368.52 = 66,840.73 : x
  2. Step 2: Convert to fraction form
    120,557.10/166,368.52 = 66,840.73/x
  3. Step 3: Cross multiply
    120,557.10x = 166,368.52 × 66,840.73
  4. Step 4: Simplify right side
    120,557.10x = 11,120,193,325.82
  5. Step 5: Solve for x
    x = 11,120,193,325.82/120,557.10
  6. Step 6: Final answer
    x = 92,240.05

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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.