Home / 127,789.68-191,774.16-52,911.12

Finding the Fourth Proportional to 127,789.68, 191,774.16 and 52,911.12

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Solution

The fourth proportional to 127,789.68, 191,774.16 and 52,911.12 is: 79,403.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,789.68 : 191,774.16 = 52,911.12 : x
  2. Step 2: Convert to fraction form
    127,789.68/191,774.16 = 52,911.12/x
  3. Step 3: Cross multiply
    127,789.68x = 191,774.16 × 52,911.12
  4. Step 4: Simplify right side
    127,789.68x = 10,146,985,592.66
  5. Step 5: Solve for x
    x = 10,146,985,592.66/127,789.68
  6. Step 6: Final answer
    x = 79,403.80

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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.