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Finding the Fourth Proportional to 123,244.61, 184,866.91 and 40,138.61

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Solution

The fourth proportional to 123,244.61, 184,866.91 and 40,138.61 is: 60,207.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,244.61 : 184,866.91 = 40,138.61 : x
  2. Step 2: Convert to fraction form
    123,244.61/184,866.91 = 40,138.61/x
  3. Step 3: Cross multiply
    123,244.61x = 184,866.91 × 40,138.61
  4. Step 4: Simplify right side
    123,244.61x = 7,420,299,777.71
  5. Step 5: Solve for x
    x = 7,420,299,777.71/123,244.61
  6. Step 6: Final answer
    x = 60,207.91

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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.