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Finding the Fourth Proportional to 187,504.61, 258,762.54 and 102,621.67

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Solution

The fourth proportional to 187,504.61, 258,762.54 and 102,621.67 is: 141,621.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,504.61 : 258,762.54 = 102,621.67 : x
  2. Step 2: Convert to fraction form
    187,504.61/258,762.54 = 102,621.67/x
  3. Step 3: Cross multiply
    187,504.61x = 258,762.54 × 102,621.67
  4. Step 4: Simplify right side
    187,504.61x = 26,554,644,893.08
  5. Step 5: Solve for x
    x = 26,554,644,893.08/187,504.61
  6. Step 6: Final answer
    x = 141,621.29

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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.