Home / 179,128.88-268,633.08-90,325.68

Finding the Fourth Proportional to 179,128.88, 268,633.08 and 90,325.68

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Solution

The fourth proportional to 179,128.88, 268,633.08 and 90,325.68 is: 135,458.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,128.88 : 268,633.08 = 90,325.68 : x
  2. Step 2: Convert to fraction form
    179,128.88/268,633.08 = 90,325.68/x
  3. Step 3: Cross multiply
    179,128.88x = 268,633.08 × 90,325.68
  4. Step 4: Simplify right side
    179,128.88x = 24,264,465,621.49
  5. Step 5: Solve for x
    x = 24,264,465,621.49/179,128.88
  6. Step 6: Final answer
    x = 135,458.14

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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.