Home / 127,550.16-191,103.60-89,518.80

Finding the Fourth Proportional to 127,550.16, 191,103.60 and 89,518.80

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Solution

The fourth proportional to 127,550.16, 191,103.60 and 89,518.80 is: 134,122.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,550.16 : 191,103.60 = 89,518.80 : x
  2. Step 2: Convert to fraction form
    127,550.16/191,103.60 = 89,518.80/x
  3. Step 3: Cross multiply
    127,550.16x = 191,103.60 × 89,518.80
  4. Step 4: Simplify right side
    127,550.16x = 17,107,364,947.68
  5. Step 5: Solve for x
    x = 17,107,364,947.68/127,550.16
  6. Step 6: Final answer
    x = 134,122.65

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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.