Home / 111,761.16-154,451.61-91,586.22

Finding the Fourth Proportional to 111,761.16, 154,451.61 and 91,586.22

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Solution

The fourth proportional to 111,761.16, 154,451.61 and 91,586.22 is: 126,570.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,761.16 : 154,451.61 = 91,586.22 : x
  2. Step 2: Convert to fraction form
    111,761.16/154,451.61 = 91,586.22/x
  3. Step 3: Cross multiply
    111,761.16x = 154,451.61 × 91,586.22
  4. Step 4: Simplify right side
    111,761.16x = 14,145,639,132.81
  5. Step 5: Solve for x
    x = 14,145,639,132.81/111,761.16
  6. Step 6: Final answer
    x = 126,570.26

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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.