Home / 187,280.78-258,447.48-102,397.85

Finding the Fourth Proportional to 187,280.78, 258,447.48 and 102,397.85

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Solution

The fourth proportional to 187,280.78, 258,447.48 and 102,397.85 is: 141,309.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,280.78 : 258,447.48 = 102,397.85 : x
  2. Step 2: Convert to fraction form
    187,280.78/258,447.48 = 102,397.85/x
  3. Step 3: Cross multiply
    187,280.78x = 258,447.48 × 102,397.85
  4. Step 4: Simplify right side
    187,280.78x = 26,464,464,997.68
  5. Step 5: Solve for x
    x = 26,464,464,997.68/187,280.78
  6. Step 6: Final answer
    x = 141,309.03

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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.