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Finding the Fourth Proportional to 123,669.64, 185,518.08 and 39,410.20

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Solution

The fourth proportional to 123,669.64, 185,518.08 and 39,410.20 is: 59,119.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,669.64 : 185,518.08 = 39,410.20 : x
  2. Step 2: Convert to fraction form
    123,669.64/185,518.08 = 39,410.20/x
  3. Step 3: Cross multiply
    123,669.64x = 185,518.08 × 39,410.20
  4. Step 4: Simplify right side
    123,669.64x = 7,311,304,636.42
  5. Step 5: Solve for x
    x = 7,311,304,636.42/123,669.64
  6. Step 6: Final answer
    x = 59,119.64

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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.