Home / 128,296.32-192,364.52-49,392.08

Finding the Fourth Proportional to 128,296.32, 192,364.52 and 49,392.08

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Solution

The fourth proportional to 128,296.32, 192,364.52 and 49,392.08 is: 74,057.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,296.32 : 192,364.52 = 49,392.08 : x
  2. Step 2: Convert to fraction form
    128,296.32/192,364.52 = 49,392.08/x
  3. Step 3: Cross multiply
    128,296.32x = 192,364.52 × 49,392.08
  4. Step 4: Simplify right side
    128,296.32x = 9,501,283,761.00
  5. Step 5: Solve for x
    x = 9,501,283,761.00/128,296.32
  6. Step 6: Final answer
    x = 74,057.34

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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.