Home / 123,788.20-185,463.60-101,480.80

Finding the Fourth Proportional to 123,788.20, 185,463.60 and 101,480.80

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Solution

The fourth proportional to 123,788.20, 185,463.60 and 101,480.80 is: 152,041.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,788.20 : 185,463.60 = 101,480.80 : x
  2. Step 2: Convert to fraction form
    123,788.20/185,463.60 = 101,480.80/x
  3. Step 3: Cross multiply
    123,788.20x = 185,463.60 × 101,480.80
  4. Step 4: Simplify right side
    123,788.20x = 18,820,994,498.88
  5. Step 5: Solve for x
    x = 18,820,994,498.88/123,788.20
  6. Step 6: Final answer
    x = 152,041.91

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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.