Home / 127,516.50-191,278.80-38,770.79

Finding the Fourth Proportional to 127,516.50, 191,278.80 and 38,770.79

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Solution

The fourth proportional to 127,516.50, 191,278.80 and 38,770.79 is: 58,157.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,516.50 : 191,278.80 = 38,770.79 : x
  2. Step 2: Convert to fraction form
    127,516.50/191,278.80 = 38,770.79/x
  3. Step 3: Cross multiply
    127,516.50x = 191,278.80 × 38,770.79
  4. Step 4: Simplify right side
    127,516.50x = 7,416,029,229.86
  5. Step 5: Solve for x
    x = 7,416,029,229.86/127,516.50
  6. Step 6: Final answer
    x = 58,157.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.