Home / 187,114.51-258,144.72-115,369.97

Finding the Fourth Proportional to 187,114.51, 258,144.72 and 115,369.97

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Solution

The fourth proportional to 187,114.51, 258,144.72 and 115,369.97 is: 159,165.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,114.51 : 258,144.72 = 115,369.97 : x
  2. Step 2: Convert to fraction form
    187,114.51/258,144.72 = 115,369.97/x
  3. Step 3: Cross multiply
    187,114.51x = 258,144.72 × 115,369.97
  4. Step 4: Simplify right side
    187,114.51x = 29,782,148,602.06
  5. Step 5: Solve for x
    x = 29,782,148,602.06/187,114.51
  6. Step 6: Final answer
    x = 159,165.36

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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.