Home / 138,018.54-207,027.89-43,256.11

Finding the Fourth Proportional to 138,018.54, 207,027.89 and 43,256.11

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Solution

The fourth proportional to 138,018.54, 207,027.89 and 43,256.11 is: 64,884.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,018.54 : 207,027.89 = 43,256.11 : x
  2. Step 2: Convert to fraction form
    138,018.54/207,027.89 = 43,256.11/x
  3. Step 3: Cross multiply
    138,018.54x = 207,027.89 × 43,256.11
  4. Step 4: Simplify right side
    138,018.54x = 8,955,220,924.12
  5. Step 5: Solve for x
    x = 8,955,220,924.12/138,018.54
  6. Step 6: Final answer
    x = 64,884.19

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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.