Home / 127,865.36-191,462.04-102,772.24

Finding the Fourth Proportional to 127,865.36, 191,462.04 and 102,772.24

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Solution

The fourth proportional to 127,865.36, 191,462.04 and 102,772.24 is: 153,888.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,865.36 : 191,462.04 = 102,772.24 : x
  2. Step 2: Convert to fraction form
    127,865.36/191,462.04 = 102,772.24/x
  3. Step 3: Cross multiply
    127,865.36x = 191,462.04 × 102,772.24
  4. Step 4: Simplify right side
    127,865.36x = 19,676,982,725.77
  5. Step 5: Solve for x
    x = 19,676,982,725.77/127,865.36
  6. Step 6: Final answer
    x = 153,888.30

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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.