Home / 120,880.50-181,258.16-54,263.27

Finding the Fourth Proportional to 120,880.50, 181,258.16 and 54,263.27

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Solution

The fourth proportional to 120,880.50, 181,258.16 and 54,263.27 is: 81,366.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,880.50 : 181,258.16 = 54,263.27 : x
  2. Step 2: Convert to fraction form
    120,880.50/181,258.16 = 54,263.27/x
  3. Step 3: Cross multiply
    120,880.50x = 181,258.16 × 54,263.27
  4. Step 4: Simplify right side
    120,880.50x = 9,835,659,638.04
  5. Step 5: Solve for x
    x = 9,835,659,638.04/120,880.50
  6. Step 6: Final answer
    x = 81,366.80

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Why These Related Problems?

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