Home / 127,531.20-191,296.80-119,755.20

Finding the Fourth Proportional to 127,531.20, 191,296.80 and 119,755.20

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Solution

The fourth proportional to 127,531.20, 191,296.80 and 119,755.20 is: 179,632.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,531.20 : 191,296.80 = 119,755.20 : x
  2. Step 2: Convert to fraction form
    127,531.20/191,296.80 = 119,755.20/x
  3. Step 3: Cross multiply
    127,531.20x = 191,296.80 × 119,755.20
  4. Step 4: Simplify right side
    127,531.20x = 22,908,786,543.36
  5. Step 5: Solve for x
    x = 22,908,786,543.36/127,531.20
  6. Step 6: Final answer
    x = 179,632.80

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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.