Home / 120,587.20-166,376.64-70,276.48

Finding the Fourth Proportional to 120,587.20, 166,376.64 and 70,276.48

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Solution

The fourth proportional to 120,587.20, 166,376.64 and 70,276.48 is: 96,961.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,587.20 : 166,376.64 = 70,276.48 : x
  2. Step 2: Convert to fraction form
    120,587.20/166,376.64 = 70,276.48/x
  3. Step 3: Cross multiply
    120,587.20x = 166,376.64 × 70,276.48
  4. Step 4: Simplify right side
    120,587.20x = 11,692,364,613.43
  5. Step 5: Solve for x
    x = 11,692,364,613.43/120,587.20
  6. Step 6: Final answer
    x = 96,961.90

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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.