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Finding the Fourth Proportional to 103,205.77, 154,808.78 and 28,326.94

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Solution

The fourth proportional to 103,205.77, 154,808.78 and 28,326.94 is: 42,490.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,205.77 : 154,808.78 = 28,326.94 : x
  2. Step 2: Convert to fraction form
    103,205.77/154,808.78 = 28,326.94/x
  3. Step 3: Cross multiply
    103,205.77x = 154,808.78 × 28,326.94
  4. Step 4: Simplify right side
    103,205.77x = 4,385,259,022.53
  5. Step 5: Solve for x
    x = 4,385,259,022.53/103,205.77
  6. Step 6: Final answer
    x = 42,490.44

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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.