Home / 120,306.44-180,340.62-57,015.32

Finding the Fourth Proportional to 120,306.44, 180,340.62 and 57,015.32

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Solution

The fourth proportional to 120,306.44, 180,340.62 and 57,015.32 is: 85,466.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,306.44 : 180,340.62 = 57,015.32 : x
  2. Step 2: Convert to fraction form
    120,306.44/180,340.62 = 57,015.32/x
  3. Step 3: Cross multiply
    120,306.44x = 180,340.62 × 57,015.32
  4. Step 4: Simplify right side
    120,306.44x = 10,282,178,158.30
  5. Step 5: Solve for x
    x = 10,282,178,158.30/120,306.44
  6. Step 6: Final answer
    x = 85,466.56

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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.