Home / 102,018.12-153,038.82-27,141.31

Finding the Fourth Proportional to 102,018.12, 153,038.82 and 27,141.31

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Solution

The fourth proportional to 102,018.12, 153,038.82 and 27,141.31 is: 40,715.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,018.12 : 153,038.82 = 27,141.31 : x
  2. Step 2: Convert to fraction form
    102,018.12/153,038.82 = 27,141.31/x
  3. Step 3: Cross multiply
    102,018.12x = 153,038.82 × 27,141.31
  4. Step 4: Simplify right side
    102,018.12x = 4,153,673,919.95
  5. Step 5: Solve for x
    x = 4,153,673,919.95/102,018.12
  6. Step 6: Final answer
    x = 40,715.06

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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.