Home / 192,128.39-265,136.16-111,575.72

Finding the Fourth Proportional to 192,128.39, 265,136.16 and 111,575.72

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Solution

The fourth proportional to 192,128.39, 265,136.16 and 111,575.72 is: 153,973.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,128.39 : 265,136.16 = 111,575.72 : x
  2. Step 2: Convert to fraction form
    192,128.39/265,136.16 = 111,575.72/x
  3. Step 3: Cross multiply
    192,128.39x = 265,136.16 × 111,575.72
  4. Step 4: Simplify right side
    192,128.39x = 29,582,756,624.35
  5. Step 5: Solve for x
    x = 29,582,756,624.35/192,128.39
  6. Step 6: Final answer
    x = 153,973.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.