Home / 131,108.48-180,945.24-74,528.36

Finding the Fourth Proportional to 131,108.48, 180,945.24 and 74,528.36

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Solution

The fourth proportional to 131,108.48, 180,945.24 and 74,528.36 is: 102,857.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,108.48 : 180,945.24 = 74,528.36 : x
  2. Step 2: Convert to fraction form
    131,108.48/180,945.24 = 74,528.36/x
  3. Step 3: Cross multiply
    131,108.48x = 180,945.24 × 74,528.36
  4. Step 4: Simplify right side
    131,108.48x = 13,485,551,987.01
  5. Step 5: Solve for x
    x = 13,485,551,987.01/131,108.48
  6. Step 6: Final answer
    x = 102,857.97

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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.