Home / 128,335.29-192,552.14-53,435.32

Finding the Fourth Proportional to 128,335.29, 192,552.14 and 53,435.32

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Solution

The fourth proportional to 128,335.29, 192,552.14 and 53,435.32 is: 80,173.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,335.29 : 192,552.14 = 53,435.32 : x
  2. Step 2: Convert to fraction form
    128,335.29/192,552.14 = 53,435.32/x
  3. Step 3: Cross multiply
    128,335.29x = 192,552.14 × 53,435.32
  4. Step 4: Simplify right side
    128,335.29x = 10,289,085,110.77
  5. Step 5: Solve for x
    x = 10,289,085,110.77/128,335.29
  6. Step 6: Final answer
    x = 80,173.47

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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.