Home / 123,719.54-185,672.60-90,525.24

Finding the Fourth Proportional to 123,719.54, 185,672.60 and 90,525.24

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Solution

The fourth proportional to 123,719.54, 185,672.60 and 90,525.24 is: 135,856.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,719.54 : 185,672.60 = 90,525.24 : x
  2. Step 2: Convert to fraction form
    123,719.54/185,672.60 = 90,525.24/x
  3. Step 3: Cross multiply
    123,719.54x = 185,672.60 × 90,525.24
  4. Step 4: Simplify right side
    123,719.54x = 16,808,056,676.42
  5. Step 5: Solve for x
    x = 16,808,056,676.42/123,719.54
  6. Step 6: Final answer
    x = 135,856.12

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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.