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Finding the Fourth Proportional to 148,448.08, 204,860.80 and 80,467.20

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Solution

The fourth proportional to 148,448.08, 204,860.80 and 80,467.20 is: 111,046.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,448.08 : 204,860.80 = 80,467.20 : x
  2. Step 2: Convert to fraction form
    148,448.08/204,860.80 = 80,467.20/x
  3. Step 3: Cross multiply
    148,448.08x = 204,860.80 × 80,467.20
  4. Step 4: Simplify right side
    148,448.08x = 16,484,574,965.76
  5. Step 5: Solve for x
    x = 16,484,574,965.76/148,448.08
  6. Step 6: Final answer
    x = 111,046.06

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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.