Home / 128,698.32-193,039.00-44,459.69

Finding the Fourth Proportional to 128,698.32, 193,039.00 and 44,459.69

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Solution

The fourth proportional to 128,698.32, 193,039.00 and 44,459.69 is: 66,686.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,698.32 : 193,039.00 = 44,459.69 : x
  2. Step 2: Convert to fraction form
    128,698.32/193,039.00 = 44,459.69/x
  3. Step 3: Cross multiply
    128,698.32x = 193,039.00 × 44,459.69
  4. Step 4: Simplify right side
    128,698.32x = 8,582,453,021.57
  5. Step 5: Solve for x
    x = 8,582,453,021.57/128,698.32
  6. Step 6: Final answer
    x = 66,686.60

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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.