Home / 120,133.72-180,025.62-57,731.32

Finding the Fourth Proportional to 120,133.72, 180,025.62 and 57,731.32

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Solution

The fourth proportional to 120,133.72, 180,025.62 and 57,731.32 is: 86,512.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,133.72 : 180,025.62 = 57,731.32 : x
  2. Step 2: Convert to fraction form
    120,133.72/180,025.62 = 57,731.32/x
  3. Step 3: Cross multiply
    120,133.72x = 180,025.62 × 57,731.32
  4. Step 4: Simplify right side
    120,133.72x = 10,393,116,676.42
  5. Step 5: Solve for x
    x = 10,393,116,676.42/120,133.72
  6. Step 6: Final answer
    x = 86,512.90

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1.5x scale

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.