Home / 126,615.48-189,924.18-70,540.92

Finding the Fourth Proportional to 126,615.48, 189,924.18 and 70,540.92

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Solution

The fourth proportional to 126,615.48, 189,924.18 and 70,540.92 is: 105,811.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,615.48 : 189,924.18 = 70,540.92 : x
  2. Step 2: Convert to fraction form
    126,615.48/189,924.18 = 70,540.92/x
  3. Step 3: Cross multiply
    126,615.48x = 189,924.18 × 70,540.92
  4. Step 4: Simplify right side
    126,615.48x = 13,397,426,387.45
  5. Step 5: Solve for x
    x = 13,397,426,387.45/126,615.48
  6. Step 6: Final answer
    x = 105,811.91

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