Home / 187,271.48-258,435.73-102,388.55

Finding the Fourth Proportional to 187,271.48, 258,435.73 and 102,388.55

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Solution

The fourth proportional to 187,271.48, 258,435.73 and 102,388.55 is: 141,296.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,271.48 : 258,435.73 = 102,388.55 : x
  2. Step 2: Convert to fraction form
    187,271.48/258,435.73 = 102,388.55/x
  3. Step 3: Cross multiply
    187,271.48x = 258,435.73 × 102,388.55
  4. Step 4: Simplify right side
    187,271.48x = 26,460,858,498.70
  5. Step 5: Solve for x
    x = 26,460,858,498.70/187,271.48
  6. Step 6: Final answer
    x = 141,296.79

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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.