Home / 187,914.88-281,319.36-125,430.40

Finding the Fourth Proportional to 187,914.88, 281,319.36 and 125,430.40

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Solution

The fourth proportional to 187,914.88, 281,319.36 and 125,430.40 is: 187,776.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,914.88 : 281,319.36 = 125,430.40 : x
  2. Step 2: Convert to fraction form
    187,914.88/281,319.36 = 125,430.40/x
  3. Step 3: Cross multiply
    187,914.88x = 281,319.36 × 125,430.40
  4. Step 4: Simplify right side
    187,914.88x = 35,285,999,852.54
  5. Step 5: Solve for x
    x = 35,285,999,852.54/187,914.88
  6. Step 6: Final answer
    x = 187,776.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.