Home / 183,821.20-275,731.80-90,509.20

Finding the Fourth Proportional to 183,821.20, 275,731.80 and 90,509.20

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Solution

The fourth proportional to 183,821.20, 275,731.80 and 90,509.20 is: 135,763.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,821.20 : 275,731.80 = 90,509.20 : x
  2. Step 2: Convert to fraction form
    183,821.20/275,731.80 = 90,509.20/x
  3. Step 3: Cross multiply
    183,821.20x = 275,731.80 × 90,509.20
  4. Step 4: Simplify right side
    183,821.20x = 24,956,264,632.56
  5. Step 5: Solve for x
    x = 24,956,264,632.56/183,821.20
  6. Step 6: Final answer
    x = 135,763.80

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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.