Home / 127,379.86-191,121.66-64,218.15

Finding the Fourth Proportional to 127,379.86, 191,121.66 and 64,218.15

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Solution

The fourth proportional to 127,379.86, 191,121.66 and 64,218.15 is: 96,353.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,379.86 : 191,121.66 = 64,218.15 : x
  2. Step 2: Convert to fraction form
    127,379.86/191,121.66 = 64,218.15/x
  3. Step 3: Cross multiply
    127,379.86x = 191,121.66 × 64,218.15
  4. Step 4: Simplify right side
    127,379.86x = 12,273,479,430.13
  5. Step 5: Solve for x
    x = 12,273,479,430.13/127,379.86
  6. Step 6: Final answer
    x = 96,353.38

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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.