Home / 120,857.66-166,737.04-89,102.06

Finding the Fourth Proportional to 120,857.66, 166,737.04 and 89,102.06

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Solution

The fourth proportional to 120,857.66, 166,737.04 and 89,102.06 is: 122,926.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,857.66 : 166,737.04 = 89,102.06 : x
  2. Step 2: Convert to fraction form
    120,857.66/166,737.04 = 89,102.06/x
  3. Step 3: Cross multiply
    120,857.66x = 166,737.04 × 89,102.06
  4. Step 4: Simplify right side
    120,857.66x = 14,856,612,685.86
  5. Step 5: Solve for x
    x = 14,856,612,685.86/120,857.66
  6. Step 6: Final answer
    x = 122,926.53

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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.