Home / 127,295.10-191,016.66-52,422.78

Finding the Fourth Proportional to 127,295.10, 191,016.66 and 52,422.78

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Solution

The fourth proportional to 127,295.10, 191,016.66 and 52,422.78 is: 78,664.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,295.10 : 191,016.66 = 52,422.78 : x
  2. Step 2: Convert to fraction form
    127,295.10/191,016.66 = 52,422.78/x
  3. Step 3: Cross multiply
    127,295.10x = 191,016.66 × 52,422.78
  4. Step 4: Simplify right side
    127,295.10x = 10,013,624,343.51
  5. Step 5: Solve for x
    x = 10,013,624,343.51/127,295.10
  6. Step 6: Final answer
    x = 78,664.65

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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.