Home / 135,304.50-186,707.43-91,608.15

Finding the Fourth Proportional to 135,304.50, 186,707.43 and 91,608.15

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Solution

The fourth proportional to 135,304.50, 186,707.43 and 91,608.15 is: 126,410.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,304.50 : 186,707.43 = 91,608.15 : x
  2. Step 2: Convert to fraction form
    135,304.50/186,707.43 = 91,608.15/x
  3. Step 3: Cross multiply
    135,304.50x = 186,707.43 × 91,608.15
  4. Step 4: Simplify right side
    135,304.50x = 17,103,922,253.55
  5. Step 5: Solve for x
    x = 17,103,922,253.55/135,304.50
  6. Step 6: Final answer
    x = 126,410.59

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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.