Home / 179,032.80-268,621.92-90,312

Finding the Fourth Proportional to 179,032.80, 268,621.92 and 90,312

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Solution

The fourth proportional to 179,032.80, 268,621.92 and 90,312 is: 135,504.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,032.80 : 268,621.92 = 90,312 : x
  2. Step 2: Convert to fraction form
    179,032.80/268,621.92 = 90,312/x
  3. Step 3: Cross multiply
    179,032.80x = 268,621.92 × 90,312
  4. Step 4: Simplify right side
    179,032.80x = 24,259,782,839.04
  5. Step 5: Solve for x
    x = 24,259,782,839.04/179,032.80
  6. Step 6: Final answer
    x = 135,504.68

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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.