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Finding the Fourth Proportional to 172,376.98, 237,713.07 and 115,018.63

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Solution

The fourth proportional to 172,376.98, 237,713.07 and 115,018.63 is: 158,614.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,376.98 : 237,713.07 = 115,018.63 : x
  2. Step 2: Convert to fraction form
    172,376.98/237,713.07 = 115,018.63/x
  3. Step 3: Cross multiply
    172,376.98x = 237,713.07 × 115,018.63
  4. Step 4: Simplify right side
    172,376.98x = 27,341,431,644.49
  5. Step 5: Solve for x
    x = 27,341,431,644.49/172,376.98
  6. Step 6: Final answer
    x = 158,614.17

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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.