Home / 127,656.50-191,484.63-57,453.78

Finding the Fourth Proportional to 127,656.50, 191,484.63 and 57,453.78

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Solution

The fourth proportional to 127,656.50, 191,484.63 and 57,453.78 is: 86,180.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,656.50 : 191,484.63 = 57,453.78 : x
  2. Step 2: Convert to fraction form
    127,656.50/191,484.63 = 57,453.78/x
  3. Step 3: Cross multiply
    127,656.50x = 191,484.63 × 57,453.78
  4. Step 4: Simplify right side
    127,656.50x = 11,001,515,805.40
  5. Step 5: Solve for x
    x = 11,001,515,805.40/127,656.50
  6. Step 6: Final answer
    x = 86,180.62

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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.