Home / 187,561.47-258,834.85-102,678.54

Finding the Fourth Proportional to 187,561.47, 258,834.85 and 102,678.54

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Solution

The fourth proportional to 187,561.47, 258,834.85 and 102,678.54 is: 141,696.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,561.47 : 258,834.85 = 102,678.54 : x
  2. Step 2: Convert to fraction form
    187,561.47/258,834.85 = 102,678.54/x
  3. Step 3: Cross multiply
    187,561.47x = 258,834.85 × 102,678.54
  4. Step 4: Simplify right side
    187,561.47x = 26,576,783,271.79
  5. Step 5: Solve for x
    x = 26,576,783,271.79/187,561.47
  6. Step 6: Final answer
    x = 141,696.39

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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.