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Finding the Fourth Proportional to 187,469.93, 258,708.53 and 102,587

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Solution

The fourth proportional to 187,469.93, 258,708.53 and 102,587 is: 141,570.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,469.93 : 258,708.53 = 102,587 : x
  2. Step 2: Convert to fraction form
    187,469.93/258,708.53 = 102,587/x
  3. Step 3: Cross multiply
    187,469.93x = 258,708.53 × 102,587
  4. Step 4: Simplify right side
    187,469.93x = 26,540,131,454.18
  5. Step 5: Solve for x
    x = 26,540,131,454.18/187,469.93
  6. Step 6: Final answer
    x = 141,570.07

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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.