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Finding the Fourth Proportional to 123,690.60, 185,506.20 and 34,952.40

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Solution

The fourth proportional to 123,690.60, 185,506.20 and 34,952.40 is: 52,420.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,690.60 : 185,506.20 = 34,952.40 : x
  2. Step 2: Convert to fraction form
    123,690.60/185,506.20 = 34,952.40/x
  3. Step 3: Cross multiply
    123,690.60x = 185,506.20 × 34,952.40
  4. Step 4: Simplify right side
    123,690.60x = 6,483,886,904.88
  5. Step 5: Solve for x
    x = 6,483,886,904.88/123,690.60
  6. Step 6: Final answer
    x = 52,420.21

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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.