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Finding the Fourth Proportional to 172,370.44, 237,675.09 and 121,366.87

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Solution

The fourth proportional to 172,370.44, 237,675.09 and 121,366.87 is: 167,348.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,370.44 : 237,675.09 = 121,366.87 : x
  2. Step 2: Convert to fraction form
    172,370.44/237,675.09 = 121,366.87/x
  3. Step 3: Cross multiply
    172,370.44x = 237,675.09 × 121,366.87
  4. Step 4: Simplify right side
    172,370.44x = 28,845,881,750.27
  5. Step 5: Solve for x
    x = 28,845,881,750.27/172,370.44
  6. Step 6: Final answer
    x = 167,348.19

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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.