Home / 115,408.44-159,319.98-91,458.36

Finding the Fourth Proportional to 115,408.44, 159,319.98 and 91,458.36

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Solution

The fourth proportional to 115,408.44, 159,319.98 and 91,458.36 is: 126,257.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,408.44 : 159,319.98 = 91,458.36 : x
  2. Step 2: Convert to fraction form
    115,408.44/159,319.98 = 91,458.36/x
  3. Step 3: Cross multiply
    115,408.44x = 159,319.98 × 91,458.36
  4. Step 4: Simplify right side
    115,408.44x = 14,571,144,086.03
  5. Step 5: Solve for x
    x = 14,571,144,086.03/115,408.44
  6. Step 6: Final answer
    x = 126,257.18

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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.