Home / 127,824.12-191,524.32-77,752.80

Finding the Fourth Proportional to 127,824.12, 191,524.32 and 77,752.80

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Solution

The fourth proportional to 127,824.12, 191,524.32 and 77,752.80 is: 116,500.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,824.12 : 191,524.32 = 77,752.80 : x
  2. Step 2: Convert to fraction form
    127,824.12/191,524.32 = 77,752.80/x
  3. Step 3: Cross multiply
    127,824.12x = 191,524.32 × 77,752.80
  4. Step 4: Simplify right side
    127,824.12x = 14,891,552,148.10
  5. Step 5: Solve for x
    x = 14,891,552,148.10/127,824.12
  6. Step 6: Final answer
    x = 116,500.33

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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.