Home / 127,786.31-176,346.28-70,427.68

Finding the Fourth Proportional to 127,786.31, 176,346.28 and 70,427.68

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Solution

The fourth proportional to 127,786.31, 176,346.28 and 70,427.68 is: 97,190.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,786.31 : 176,346.28 = 70,427.68 : x
  2. Step 2: Convert to fraction form
    127,786.31/176,346.28 = 70,427.68/x
  3. Step 3: Cross multiply
    127,786.31x = 176,346.28 × 70,427.68
  4. Step 4: Simplify right side
    127,786.31x = 12,419,660,016.15
  5. Step 5: Solve for x
    x = 12,419,660,016.15/127,786.31
  6. Step 6: Final answer
    x = 97,190.85

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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.