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Finding the Fourth Proportional to 146,703.81, 220,055.71 and 80,107.60

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Solution

The fourth proportional to 146,703.81, 220,055.71 and 80,107.60 is: 120,161.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,703.81 : 220,055.71 = 80,107.60 : x
  2. Step 2: Convert to fraction form
    146,703.81/220,055.71 = 80,107.60/x
  3. Step 3: Cross multiply
    146,703.81x = 220,055.71 × 80,107.60
  4. Step 4: Simplify right side
    146,703.81x = 17,628,134,043.99
  5. Step 5: Solve for x
    x = 17,628,134,043.99/146,703.81
  6. Step 6: Final answer
    x = 120,161.39

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1.5x scale

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.