Home / 127,182.56-190,769.12-51,313.91

Finding the Fourth Proportional to 127,182.56, 190,769.12 and 51,313.91

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Solution

The fourth proportional to 127,182.56, 190,769.12 and 51,313.91 is: 76,968.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,182.56 : 190,769.12 = 51,313.91 : x
  2. Step 2: Convert to fraction form
    127,182.56/190,769.12 = 51,313.91/x
  3. Step 3: Cross multiply
    127,182.56x = 190,769.12 × 51,313.91
  4. Step 4: Simplify right side
    127,182.56x = 9,789,108,725.11
  5. Step 5: Solve for x
    x = 9,789,108,725.11/127,182.56
  6. Step 6: Final answer
    x = 76,968.96

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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.