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Finding the Fourth Proportional to 187,124.39, 258,228.65 and 102,239.63

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Solution

The fourth proportional to 187,124.39, 258,228.65 and 102,239.63 is: 141,089.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,124.39 : 258,228.65 = 102,239.63 : x
  2. Step 2: Convert to fraction form
    187,124.39/258,228.65 = 102,239.63/x
  3. Step 3: Cross multiply
    187,124.39x = 258,228.65 × 102,239.63
  4. Step 4: Simplify right side
    187,124.39x = 26,401,201,120.20
  5. Step 5: Solve for x
    x = 26,401,201,120.20/187,124.39
  6. Step 6: Final answer
    x = 141,089.04

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.