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Finding the Fourth Proportional to 148,492.58, 204,919.08 and 80,509.32

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Solution

The fourth proportional to 148,492.58, 204,919.08 and 80,509.32 is: 111,102.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,492.58 : 204,919.08 = 80,509.32 : x
  2. Step 2: Convert to fraction form
    148,492.58/204,919.08 = 80,509.32/x
  3. Step 3: Cross multiply
    148,492.58x = 204,919.08 × 80,509.32
  4. Step 4: Simplify right side
    148,492.58x = 16,497,895,785.83
  5. Step 5: Solve for x
    x = 16,497,895,785.83/148,492.58
  6. Step 6: Final answer
    x = 111,102.49

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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.