Home / 128,202.76-192,298.56-39,465.28

Finding the Fourth Proportional to 128,202.76, 192,298.56 and 39,465.28

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Solution

The fourth proportional to 128,202.76, 192,298.56 and 39,465.28 is: 59,196.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,202.76 : 192,298.56 = 39,465.28 : x
  2. Step 2: Convert to fraction form
    128,202.76/192,298.56 = 39,465.28/x
  3. Step 3: Cross multiply
    128,202.76x = 192,298.56 × 39,465.28
  4. Step 4: Simplify right side
    128,202.76x = 7,589,116,514.00
  5. Step 5: Solve for x
    x = 7,589,116,514.00/128,202.76
  6. Step 6: Final answer
    x = 59,196.20

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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.