Home / 133,168.20-183,770.89-72,738.83

Finding the Fourth Proportional to 133,168.20, 183,770.89 and 72,738.83

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Solution

The fourth proportional to 133,168.20, 183,770.89 and 72,738.83 is: 100,378.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,168.20 : 183,770.89 = 72,738.83 : x
  2. Step 2: Convert to fraction form
    133,168.20/183,770.89 = 72,738.83/x
  3. Step 3: Cross multiply
    133,168.20x = 183,770.89 × 72,738.83
  4. Step 4: Simplify right side
    133,168.20x = 13,367,279,526.66
  5. Step 5: Solve for x
    x = 13,367,279,526.66/133,168.20
  6. Step 6: Final answer
    x = 100,378.92

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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.