Home / 102,018.78-153,039.56-27,141.82

Finding the Fourth Proportional to 102,018.78, 153,039.56 and 27,141.82

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Solution

The fourth proportional to 102,018.78, 153,039.56 and 27,141.82 is: 40,715.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,018.78 : 153,039.56 = 27,141.82 : x
  2. Step 2: Convert to fraction form
    102,018.78/153,039.56 = 27,141.82/x
  3. Step 3: Cross multiply
    102,018.78x = 153,039.56 × 27,141.82
  4. Step 4: Simplify right side
    102,018.78x = 4,153,772,190.40
  5. Step 5: Solve for x
    x = 4,153,772,190.40/102,018.78
  6. Step 6: Final answer
    x = 40,715.76

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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.