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Finding the Fourth Proportional to 187,748, 259,092.40 and 102,865.44

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Solution

The fourth proportional to 187,748, 259,092.40 and 102,865.44 is: 141,954.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,748 : 259,092.40 = 102,865.44 : x
  2. Step 2: Convert to fraction form
    187,748/259,092.40 = 102,865.44/x
  3. Step 3: Cross multiply
    187,748x = 259,092.40 × 102,865.44
  4. Step 4: Simplify right side
    187,748x = 26,651,653,726.66
  5. Step 5: Solve for x
    x = 26,651,653,726.66/187,748
  6. Step 6: Final answer
    x = 141,954.39

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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.