Home / 130,699.21-196,058.19-54,721.30

Finding the Fourth Proportional to 130,699.21, 196,058.19 and 54,721.30

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Solution

The fourth proportional to 130,699.21, 196,058.19 and 54,721.30 is: 82,085.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,699.21 : 196,058.19 = 54,721.30 : x
  2. Step 2: Convert to fraction form
    130,699.21/196,058.19 = 54,721.30/x
  3. Step 3: Cross multiply
    130,699.21x = 196,058.19 × 54,721.30
  4. Step 4: Simplify right side
    130,699.21x = 10,728,559,032.45
  5. Step 5: Solve for x
    x = 10,728,559,032.45/130,699.21
  6. Step 6: Final answer
    x = 82,085.88

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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.