Home / 187,973.10-259,416.60-107,398.90

Finding the Fourth Proportional to 187,973.10, 259,416.60 and 107,398.90

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Solution

The fourth proportional to 187,973.10, 259,416.60 and 107,398.90 is: 148,218.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,973.10 : 259,416.60 = 107,398.90 : x
  2. Step 2: Convert to fraction form
    187,973.10/259,416.60 = 107,398.90/x
  3. Step 3: Cross multiply
    187,973.10x = 259,416.60 × 107,398.90
  4. Step 4: Simplify right side
    187,973.10x = 27,861,057,481.74
  5. Step 5: Solve for x
    x = 27,861,057,481.74/187,973.10
  6. Step 6: Final answer
    x = 148,218.32

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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.