Home / 127,985.32-176,676.36-82,685.44

Finding the Fourth Proportional to 127,985.32, 176,676.36 and 82,685.44

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Solution

The fourth proportional to 127,985.32, 176,676.36 and 82,685.44 is: 114,142.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,985.32 : 176,676.36 = 82,685.44 : x
  2. Step 2: Convert to fraction form
    127,985.32/176,676.36 = 82,685.44/x
  3. Step 3: Cross multiply
    127,985.32x = 176,676.36 × 82,685.44
  4. Step 4: Simplify right side
    127,985.32x = 14,608,562,564.20
  5. Step 5: Solve for x
    x = 14,608,562,564.20/127,985.32
  6. Step 6: Final answer
    x = 114,142.49

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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.