Home / 187,765.16-259,126.30-107,218.56

Finding the Fourth Proportional to 187,765.16, 259,126.30 and 107,218.56

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Solution

The fourth proportional to 187,765.16, 259,126.30 and 107,218.56 is: 147,967.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,765.16 : 259,126.30 = 107,218.56 : x
  2. Step 2: Convert to fraction form
    187,765.16/259,126.30 = 107,218.56/x
  3. Step 3: Cross multiply
    187,765.16x = 259,126.30 × 107,218.56
  4. Step 4: Simplify right side
    187,765.16x = 27,783,148,744.13
  5. Step 5: Solve for x
    x = 27,783,148,744.13/187,765.16
  6. Step 6: Final answer
    x = 147,967.54

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1.5x scale

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.