Home / 123,720.40-185,629.20-48,827.80

Finding the Fourth Proportional to 123,720.40, 185,629.20 and 48,827.80

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Solution

The fourth proportional to 123,720.40, 185,629.20 and 48,827.80 is: 73,260.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,720.40 : 185,629.20 = 48,827.80 : x
  2. Step 2: Convert to fraction form
    123,720.40/185,629.20 = 48,827.80/x
  3. Step 3: Cross multiply
    123,720.40x = 185,629.20 × 48,827.80
  4. Step 4: Simplify right side
    123,720.40x = 9,063,865,451.76
  5. Step 5: Solve for x
    x = 9,063,865,451.76/123,720.40
  6. Step 6: Final answer
    x = 73,260.88

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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.