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Finding the Fourth Proportional to 123,609.60, 185,403.60 and 40,503.60

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Solution

The fourth proportional to 123,609.60, 185,403.60 and 40,503.60 is: 60,751.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,609.60 : 185,403.60 = 40,503.60 : x
  2. Step 2: Convert to fraction form
    123,609.60/185,403.60 = 40,503.60/x
  3. Step 3: Cross multiply
    123,609.60x = 185,403.60 × 40,503.60
  4. Step 4: Simplify right side
    123,609.60x = 7,509,513,252.96
  5. Step 5: Solve for x
    x = 7,509,513,252.96/123,609.60
  6. Step 6: Final answer
    x = 60,751.86

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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.